Reduction and Expansion of Decimal Fractions: Converting fractions to their simplest form

Examples with solutions for Reduction and Expansion of Decimal Fractions: Converting fractions to their simplest form

Exercise #1

Write the following decimal as a fraction and simplify:

0.75 0.75

Video Solution

Step-by-Step Solution

Since there are two digits after the decimal point, we divide 75 by 100:

75100 \frac{75}{100}

Now let's find the highest number that divides both the numerator and denominator.

In this case, the number is 25, so:

75:25100:25=34 \frac{75:25}{100:25}=\frac{3}{4}

Answer

34 \frac{3}{4}

Exercise #2

Write the following decimal fraction as a simple fraction and simplify:

0.350 0.350

Video Solution

Step-by-Step Solution

Since there are three digits after the decimal point, we divide 350 by 1000:

3501000 \frac{350}{1000}

Now let's find the highest number that divides both the numerator and denominator.

In this case, the number is 50, so:

350:501000:50=720 \frac{350:50}{1000:50}=\frac{7}{20}

Answer

720 \frac{7}{20}

Exercise #3

Write the following decimal fraction as a simple fraction and simplify:

0.36= 0.36=

Video Solution

Step-by-Step Solution

Since there are two digits after the decimal point, we divide 36 by 100:

36100 \frac{36}{100}

Now let's find the highest number that divides both the numerator and denominator.

In this case, the number is 4, so:

36:4100:4=925 \frac{36:4}{100:4}=\frac{9}{25}

Answer

925 \frac{9}{25}

Exercise #4

Write the following decimal fraction as a simple fraction and simplify:

0.58 0.58

Video Solution

Step-by-Step Solution

Since there are two digits after the decimal point, we divide 58 by 100:

58100 \frac{58}{100}

Now let's find the highest number that divides both the numerator and denominator.

In this case, the number is 2, so:

58:2100:2=2950 \frac{58:2}{100:2}=\frac{29}{50}

Answer

2950 \frac{29}{50}

Exercise #5

Write the following decimal fraction as a simple fraction and simplify:

0.5= 0.5=

Video Solution

Step-by-Step Solution

Since there is one digit after the decimal point, we divide 5 by 10:

510 \frac{5}{10}

Now let's find the highest number that divides both the numerator and the denominator.

In this case, the number is 5, so:

5:510:5=12 \frac{5:5}{10:5}=\frac{1}{2}

Answer

12 \frac{1}{2}

Exercise #6

Write the following decimal fraction as a simple fraction and simplify:

0.630 0.630

Video Solution

Step-by-Step Solution

Since there are three digits after the decimal point, we divide 630 by 1000:

6301000 \frac{630}{1000}

Now let's find the highest number that divides both the numerator and denominator.

In this case, the number is 10, so:

630:101000:10=63100 \frac{630:10}{1000:10}=\frac{63}{100}

Answer

63100 \frac{63}{100}

Exercise #7

Write the following decimal fraction as a simple fraction and simplify:

0.8 0.8

Video Solution

Step-by-Step Solution

Since there is one digit after the decimal point, we divide 8 by 10:

810 \frac{8}{10}

Now let's find the highest number that divides both the numerator and denominator.

In this case, the number is 2, so:

8:210:2=45 \frac{8:2}{10:2}=\frac{4}{5}

Answer

45 \frac{4}{5}

Exercise #8

Convert into a mixed fraction:

1.4 1.4

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there is one digit after the decimal point, we divide 4 by 10 and add 1 which represents one whole number, as follows:

1+410 1+\frac{4}{10}

Now let's divide the simple fraction by the highest number that can divide both the numerator and denominator, in this case the number is 2:

1+4:210:2=1+25=125 1+\frac{4:2}{10:2}=1+\frac{2}{5}=1\frac{2}{5}

Answer

125 1\frac{2}{5}

Exercise #9

Convert into a mixed fraction:

16.4 16.4

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there is one digit after the decimal point, we divide 4 by 10 and add 16, as follows:

16+410 16+\frac{4}{10}

Now let's divide the simple fraction by the highest number that can divide both the numerator and denominator, in this case the number is 2:

16+4:210:2=16+25=1625 16+\frac{4:2}{10:2}=16+\frac{2}{5}=16\frac{2}{5}

Answer

1625 16\frac{2}{5}

Exercise #10

Convert into a mixed fraction:

2.6 2.6

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there is one digit after the decimal point, we divide 6 by 10 and add 2, as follows:

2+610 2+\frac{6}{10}

Now let's divide the simple fraction by the highest number that can divide both the numerator and denominator, in this case the number is 2:

2+6:210:2=2+35=235 2+\frac{6:2}{10:2}=2+\frac{3}{5}=2\frac{3}{5}

Answer

235 2\frac{3}{5}

Exercise #11

Write the following decimal fraction as an imaginary fraction and simplify:

11.3 11.3

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there is one digit after the decimal point, we will divide 3 by 10 and add 11, as follows:

11+310 11+\frac{3}{10}

Since it cannot be simplified further, the answer is:

11310 11\frac{3}{10}

Answer

11310 11\frac{3}{10}

Exercise #12

Write the following decimal fraction as an imaginary fraction and simplify:

6.9 6.9

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there is one digit after the decimal point, we'll divide 9 by 10 and add 6, as follows:

6+910 6+\frac{9}{10}

Since it can't be simplified further, the answer is:

6910 6\frac{9}{10}

Answer

6910 6\frac{9}{10}

Exercise #13

Convert into a mixed fraction:

15.96 15.96

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there are 2 digits after the decimal point, we'll divide 96 by 100 and add 15, as follows:

15+96100 15+\frac{96}{100}

Now let's divide the simple fraction by the highest number that can divide both the numerator and denominator, in this case the number is 4:

15+96:4100:4=15+2425=152425 15+\frac{96:4}{100:4}=15+\frac{24}{25}=15\frac{24}{25}

Answer

152425 15\frac{24}{25}

Exercise #14

Convert into a mixed fraction:

18.25 18.25

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there are 2 digits after the decimal point, we'll divide 25 by 100 and add 18, as follows:

18+25100 18+\frac{25}{100}

Now let's divide the simple fraction by the highest number that can divide both the numerator and denominator, in this case the number is 25:

18+25:25100:25=18+14=1814 18+\frac{25:25}{100:25}=18+\frac{1}{4}=18\frac{1}{4}

Answer

1814 18\frac{1}{4}

Exercise #15

Convert into a mixed fraction:

32.80 32.80

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there are 2 digits after the decimal point, we divide 80 by 100 and then 32, as follows:

32+80100 32+\frac{80}{100}

Now let's divide the simple fraction by the highest number that can divide both the numerator and denominator, in this case the number is 20:

32+80:20100:20=32+45=3245 32+\frac{80:20}{100:20}=32+\frac{4}{5}=32\frac{4}{5}

Answer

3245 32\frac{4}{5}

Exercise #16

Convert into a mixed fraction:

36.105 36.105

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there are 3 digits after the decimal point, we'll divide 105 by 1000 and 36, as follows:

36+1051000 36+\frac{105}{1000}

Now let's divide the simple fraction by the highest number that can divide both the numerator and denominator, in this case the number is 5:

36+105:41000:4=36+21200=3621200 36+\frac{105:4}{1000:4}=36+\frac{21}{200}=36\frac{21}{200}

Answer

3621200 36\frac{21}{200}

Exercise #17

Convert into a mixed fraction:

66.322 66.322

Video Solution

Step-by-Step Solution

Let's write the decimal fraction as a mixed fraction.

Since there are 3 digits after the decimal point, we'll divide 322 by 1000 and 66, as follows:

66+3221000 66+\frac{322}{1000}

Now let's divide the simple fraction by the highest number that can divide both the numerator and denominator, in this case the number is 2:

66+322:21000:2=36+161500=66161500 66+\frac{322:2}{1000:2}=36+\frac{161}{500}=66\frac{161}{500}

Answer

66161500 66\frac{161}{500}