Subtract 56/16 from 21/5
1st number: 4 1/5, 2nd number: 3 8/16
21/5 - 56/16 is 7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
21/5 = 21 × 16/5 × 16 = 336/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
56/16 = 56 × 5/16 × 5 = 280/80 - Subtract the two like fractions:
336/80 - 280/80 = 336 - 280/80 = 56/80 - After reducing the fraction, the answer is 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5-56/16 21/10-56/16 21/5-56/32 63/5-56/16 21/15-56/16 21/5-56/48 21/25-56/16 21/5-56/80 21/35-56/16