Subtract 90/56 from 27/32
1st number: 27/32, 2nd number: 1 34/56
27/32 - 90/56 is -171/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 56 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 32 × 7 = 224,
27/32 = 27 × 7/32 × 7 = 189/224 - Likewise, for the 2nd fraction, since 56 × 4 = 224,
90/56 = 90 × 4/56 × 4 = 360/224 - Subtract the two like fractions:
189/224 - 360/224 = 189 - 360/224 = -171/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/32-90/56 27/64-90/56 81/32-90/56 27/96-90/56