Subtract 63/35 from 27/28
1st number: 27/28, 2nd number: 1 28/35
27/28 - 63/35 is -117/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
27/28 = 27 × 5/28 × 5 = 135/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
63/35 = 63 × 4/35 × 4 = 252/140 - Subtract the two like fractions:
135/140 - 252/140 = 135 - 252/140 = -117/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28-63/35 27/56-63/35 27/28-63/70 81/28-63/35 27/84-63/35