Subtract 72/8 from 24/7
1st number: 3 3/7, 2nd number: 9 0/8
24/7 - 72/8 is -39/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
24/7 = 24 × 8/7 × 8 = 192/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
72/8 = 72 × 7/8 × 7 = 504/56 - Subtract the two like fractions:
192/56 - 504/56 = 192 - 504/56 = -312/56 - After reducing the fraction, the answer is -39/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/7-72/8 24/14-72/8 24/7-72/16 72/7-72/8 24/21-72/8 24/7-72/24 24/35-72/8 24/7-72/40 24/49-72/8 24/7-72/56