Solve the Fraction Subtraction: 3/4 - 1/6 Step by Step

Question

Solve the following exercise:

3416=? \frac{3}{4}-\frac{1}{6}=\text{?}

Video Solution

Solution Steps

00:00 Solve
00:03 We want to find the least common denominator
00:06 We'll multiply by 3 and 2 respectively to find the common denominator
00:09 Make sure to multiply both numerator and denominator
00:16 Calculate the multiplications
00:24 Subtract with the common denominator
00:30 Calculate the numerator
00:34 And this is the solution to the question

Step-by-Step Solution

To solve the problem of subtracting the fractions 34 \frac{3}{4} and 16 \frac{1}{6} , we follow these steps:

  • First, identify the least common denominator (LCD) of the given fractions' denominators. The numbers 4 and 6 have an LCD of 12.
  • Next, convert each fraction to have this common denominator.

The fraction 34 \frac{3}{4} is converted by determining what number we multiply 4 by to get 12 (which is 3). Thus, multiply both the numerator and the denominator by 3:
34=3×34×3=912 \frac{3}{4} = \frac{3 \times 3}{4 \times 3} = \frac{9}{12} .

The fraction 16 \frac{1}{6} is converted by determining what number we multiply 6 by to get 12 (which is 2). Hence, multiply both the numerator and the denominator by 2:
16=1×26×2=212 \frac{1}{6} = \frac{1 \times 2}{6 \times 2} = \frac{2}{12} .

  • Now that both fractions have the common denominator, subtract the numerators:

912212=9212=712 \frac{9}{12} - \frac{2}{12} = \frac{9 - 2}{12} = \frac{7}{12} .

The solution is the fraction 712 \frac{7}{12} .

In conclusion, the answer to this problem is 712 \frac{7}{12} .

Answer

712 \frac{7}{12}