Subtract 35/8 from 21/25
1st number: 21/25, 2nd number: 4 3/8
21/25 - 35/8 is -707/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
21/25 = 21 × 8/25 × 8 = 168/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
35/8 = 35 × 25/8 × 25 = 875/200 - Subtract the two like fractions:
168/200 - 875/200 = 168 - 875/200 = -707/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25-35/8 21/25-70/8 21/50-35/8 21/25-35/16 63/25-35/8 21/75-35/8 21/25-35/24 21/25-35/40 21/25-35/56