Subtract 21/15 from 60/8
1st number: 7 4/8, 2nd number: 1 6/15
60/8 - 21/15 is 61/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
60/8 = 60 × 15/8 × 15 = 900/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
21/15 = 21 × 8/15 × 8 = 168/120 - Subtract the two like fractions:
900/120 - 168/120 = 900 - 168/120 = 732/120 - After reducing the fraction, the answer is 61/10
- In mixed form: 61/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8-42/15 60/16-21/15 60/8-21/30 60/8-63/15 60/24-21/15 60/8-21/45 60/40-21/15 60/8-21/75 60/56-21/15