Subtract 20/16 from 56/15
1st number: 3 11/15, 2nd number: 1 4/16
56/15 - 20/16 is 149/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
56/15 = 56 × 16/15 × 16 = 896/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
20/16 = 20 × 15/16 × 15 = 300/240 - Subtract the two like fractions:
896/240 - 300/240 = 896 - 300/240 = 596/240 - After reducing the fraction, the answer is 149/60
- In mixed form: 229/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15-40/16 56/30-20/16 56/15-20/32 56/15-60/16 56/45-20/16 56/15-20/48 56/75-20/16 56/15-20/80