Subtract 90/56 from 81/14
1st number: 5 11/14, 2nd number: 1 34/56
81/14 - 90/56 is 117/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
81/14 = 81 × 4/14 × 4 = 324/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
90/56 = 90 × 1/56 × 1 = 90/56 - Subtract the two like fractions:
324/56 - 90/56 = 324 - 90/56 = 234/56 - After reducing the fraction, the answer is 117/28
- In mixed form: 45/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/28-90/56 81/42-90/56 81/70-90/56 81/98-90/56