Subtract 24/8 from 15/7
1st number: 2 1/7, 2nd number: 3 0/8
15/7 - 24/8 is -6/7.
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,
15/7 = 15 × 8/7 × 8 = 120/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
24/8 = 24 × 7/8 × 7 = 168/56 - Subtract the two like fractions:
120/56 - 168/56 = 120 - 168/56 = -48/56 - After reducing the fraction, the answer is -6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7-24/8 15/7-48/8 15/14-24/8 15/7-24/16 45/7-24/8 15/7-72/8 15/21-24/8 75/7-24/8 15/35-24/8 15/7-24/40 15/49-24/8 15/7-24/56