Subtract 18/28 from 27/32
27/32 - 18/28 is 45/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 28 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 28 × 8 = 224,
18/28 = 18 × 8/28 × 8 = 144/224 - Subtract the two like fractions:
189/224 - 144/224 = 189 - 144/224 = 45/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/32-18/28 27/32-36/28 27/64-18/28 27/32-18/56 81/32-18/28 27/32-54/28 27/96-18/28 27/32-18/84 27/32-90/28