Subtract 63/90 from 56/15
1st number: 3 11/15, 2nd number: 63/90
56/15 - 63/90 is 91/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
56/15 = 56 × 6/15 × 6 = 336/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Subtract the two like fractions:
336/90 - 63/90 = 336 - 63/90 = 273/90 - After reducing the fraction, the answer is 91/30
- In mixed form: 31/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30-63/90 56/45-63/90 56/75-63/90