Subtract 9/7 from 72/6
1st number: 12 0/6, 2nd number: 1 2/7
72/6 - 9/7 is 75/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
72/6 = 72 × 7/6 × 7 = 504/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
9/7 = 9 × 6/7 × 6 = 54/42 - Subtract the two like fractions:
504/42 - 54/42 = 504 - 54/42 = 450/42 - After reducing the fraction, the answer is 75/7
- In mixed form: 105/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/6-18/7 72/12-9/7 72/6-9/14 72/6-27/7 72/18-9/7 72/6-9/21 72/6-45/7 72/30-9/7 72/6-9/35 72/6-63/7 72/42-9/7 72/6-9/49