Subtract 21/60 from 6/8
6/8 - 21/60 is 2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
6/8 = 6 × 15/8 × 15 = 90/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
21/60 = 21 × 2/60 × 2 = 42/120 - Subtract the two like fractions:
90/120 - 42/120 = 90 - 42/120 = 48/120 - After reducing the fraction, the answer is 2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/8-21/60 6/8-42/60 6/16-21/60 18/8-21/60 6/8-63/60 6/24-21/60 30/8-21/60 6/40-21/60 42/8-21/60 6/56-21/60