Subtract 25/28 from 4/5
4/5 - 25/28 is -13/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
4/5 = 4 × 28/5 × 28 = 112/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
25/28 = 25 × 5/28 × 5 = 125/140 - Subtract the two like fractions:
112/140 - 125/140 = 112 - 125/140 = -13/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5-25/28 4/5-50/28 4/10-25/28 4/5-25/56 12/5-25/28 4/5-75/28 4/15-25/28 4/5-25/84 20/5-25/28 4/25-25/28 28/5-25/28 4/35-25/28