Subtract 10/7 from 72/9
1st number: 8 0/9, 2nd number: 1 3/7
72/9 - 10/7 is 46/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
72/9 = 72 × 7/9 × 7 = 504/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
10/7 = 10 × 9/7 × 9 = 90/63 - Subtract the two like fractions:
504/63 - 90/63 = 504 - 90/63 = 414/63 - After reducing the fraction, the answer is 46/7
- In mixed form: 64/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/9-20/7 72/18-10/7 72/9-10/14 72/9-30/7 72/27-10/7 72/9-10/21 72/9-50/7 72/45-10/7 72/9-10/35 72/9-70/7 72/63-10/7 72/9-10/49