Converting Decimals to Fractions Practice Problems

Master converting decimal numbers to simple fractions and mixed numbers with step-by-step practice problems, interactive exercises, and detailed solutions.

📚What You'll Master in This Practice Session
  • Convert decimal numbers like 0.5, 0.25, and 0.125 to simple fractions
  • Transform decimals with denominators of 10, 100, and 1000 into fraction form
  • Simplify decimal fractions to their lowest terms using greatest common factors
  • Convert improper decimal fractions to mixed numbers with whole parts
  • Identify the relationship between decimal places and fraction denominators
  • Apply conversion techniques to solve real-world decimal-to-fraction problems

Understanding Converting Decimal Fractions to Simple Fractions and Mixed Numbers

Complete explanation with examples

Converting a simple fraction to decimal - how to calculate?

So how do we convert a simple fraction to a decimal fraction? First, we can reassure you by saying that the answer is: quite easily. All you need is to understand the technique, and mainly to understand the meaning of the decimal fraction. First, what do decimal fractions look like? They appear in the following form: 0.5, 3.6, and so on. Or in other words: "the fraction with the point".

In fact, there is a point that creates the boundary between the whole number and the fraction. To convert a simple fraction to a decimal fraction, you need to choose a denominator: 10, 100, or 1000. So how can you also convert "simple" fractions to decimal fractions? Pay attention:

Basic fraction data:

  • The line that separates between two different numbers is called the fraction line.
  • The top part of the fraction - numerator.
  • The bottom part of the fraction - denominator.

Note that when we convert a "classic" simple fraction to a decimal fraction, the fraction line disappears, and a decimal point separates the numbers.

Chart illustrating the conversion of decimal numbers to fractions, categorized by one-digit, two-digit, and three-digit decimals, including examples like 0.7 = 7/10 and 0.562 = 562/100.

Detailed explanation

Practice Converting Decimal Fractions to Simple Fractions and Mixed Numbers

Test your knowledge with 58 quizzes

Convert into fraction form:

\( 0.11= \)

Examples with solutions for Converting Decimal Fractions to Simple Fractions and Mixed Numbers

Step-by-step solutions included
Exercise #1

How much of the whole does the shaded area (blue) represent?

Step-by-Step Solution

To solve this problem, we need to determine the fraction of the whole grid that is represented by the shaded (blue) area. The grid is a 10x10 layout, therefore containing a total of 10×10=10010 \times 10 = 100 equal-sized squares.

Step 1: We count the number of shaded squares in the grid. According to the illustration, there are 86 shaded squares.

Step 2: Calculate the fraction of the shaded area compared to the whole grid: Number of shaded squaresTotal number of squares=86100\frac{\text{Number of shaded squares}}{\text{Total number of squares}} = \frac{86}{100}.

Step 3: Convert this fraction into a decimal. Dividing the numerator by the denominator gives us 0.86 0.86 .

Therefore, the shaded area represents 86100\frac{86}{100} of the total grid, which is equivalent to 0.860.86.

This matches with the correct answer choice, which is: 0.860.86 or 86100\frac{86}{100}.

Answer:

0.86 0.86 or 86100 \frac{86}{100}

Exercise #2

How much of the whole does the shaded area (blue) represent?

Step-by-Step Solution

To solve this problem, we will determine how much of the whole grid is represented by the shaded area.

The problem provides a 10x10 grid which contains 100 smaller squares in total. Our task is to determine how many of these squares are shaded.

Upon inspection, we count that 80 out of the 100 squares are shaded.

Therefore, the fraction of the whole that the shaded area represents is given by dividing the number of shaded squares by the total number of squares:

shaded squarestotal squares=810 \frac{\text{shaded squares}}{\text{total squares}} = \frac{8}{10}

Converting this fraction to a decimal gives 0.80.8.

Thus, the shaded area represents 810\frac{8}{10} or 0.80.8 of the whole.

Among the choices provided, the correct answer is: 0.8 0.8 or 810 \frac{8}{10} .

Answer:

0.8 0.8 or 810 \frac{8}{10}

Exercise #3

Convert into fraction form:

0.04= 0.04=

Step-by-Step Solution

Let's pay attention to where the decimal point is located in the number.

Remember:

One number after the zero represents tens

Two numbers after the zero represent hundreds

Three numbers after the zero represent thousands

And so on

In this case, there are two numbers after the zero, so the number is divided by 100

Let's write the fraction in the following way:

004100 \frac{004}{100}

We'll then remove the unnecessary zeros as follows:

4100 \frac{4}{100}

Answer:

4100 \frac{4}{100}

Video Solution
Exercise #4

Convert into fraction form:

0.06= 0.06=

Step-by-Step Solution

Let's pay attention to where the decimal point is located in the number.

Remember:

One number after the zero represents tens

Two numbers after the zero represent hundreds

Three numbers after the zero represent thousands

And so on

In this case, there are two numbers after the zero, so the number is divided by 100

We'll write the fraction like this:

006100 \frac{006}{100}

We'll then remove the unnecessary zeros as follows:

6100 \frac{6}{100}

Answer:

6100 \frac{6}{100}

Video Solution
Exercise #5

Convert into fraction form:

0.33= 0.33=

Step-by-Step Solution

Let's pay attention to where the decimal point is located in the number.

Remember:

One number after the zero represents tens

Two numbers after the zero represent hundreds

Three numbers after the zero represent thousands

And so on

In this case, there are two numbers after the zero, so the number is divided by 100

We'll write the fraction in the following way:

033100 \frac{033}{100}

We'll then proceed to remove the unnecessary zeros as follows:

33100 \frac{33}{100}

Answer:

33100 \frac{33}{100}

Video Solution

Frequently Asked Questions

How do you convert 0.25 to a fraction step by step?

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To convert 0.25 to a fraction: 1) Write 25/100 (25 over 100), 2) Find the GCD of 25 and 100, which is 25, 3) Divide both numerator and denominator by 25 to get 1/4. The decimal 0.25 equals the fraction 1/4.

What's the easiest way to convert decimals to fractions?

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The easiest method is to use the decimal place value as your denominator. One decimal place uses 10, two decimal places use 100, three use 1000, and so on. Then simplify the resulting fraction by dividing both parts by their greatest common divisor.

How do you convert 0.125 to a simple fraction?

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Since 0.125 has three decimal places, write it as 125/1000. Then simplify by dividing both numerator and denominator by their GCD (125): 125÷125 = 1 and 1000÷125 = 8, giving you 1/8.

What fraction equals 0.75 in simplest form?

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0.75 equals 75/100. To simplify, find the GCD of 75 and 100, which is 25. Divide both by 25: 75÷25 = 3 and 100÷25 = 4. Therefore, 0.75 = 3/4 in simplest form.

How do you convert repeating decimals like 0.333... to fractions?

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For repeating decimals, use algebraic methods. Let x = 0.333..., then 10x = 3.333.... Subtract the first equation from the second: 9x = 3, so x = 3/9 = 1/3. Therefore, 0.333... = 1/3.

When should you convert a decimal to a mixed number instead of a simple fraction?

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Convert to a mixed number when the decimal is greater than 1, like 2.75. First convert the decimal part (0.75 = 3/4), then combine with the whole number to get 2 3/4. Mixed numbers are often easier to visualize and understand than improper fractions.

What's the difference between 0.5 as a fraction and 0.05 as a fraction?

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0.5 has one decimal place, so it becomes 5/10 = 1/2. 0.05 has two decimal places, so it becomes 5/100 = 1/20. The key difference is the number of decimal places, which determines the denominator (10 vs 100).

How do you check if your decimal to fraction conversion is correct?

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Divide the numerator by the denominator using long division or a calculator. The result should equal your original decimal. For example, to verify 3/4 = 0.75, divide 3÷4 = 0.75. If the results match, your conversion is correct.

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