Subtract 50/35 from 21/25
1st number: 21/25, 2nd number: 1 15/35
21/25 - 50/35 is -103/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 35 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
21/25 = 21 × 7/25 × 7 = 147/175 - Likewise, for the 2nd fraction, since 35 × 5 = 175,
50/35 = 50 × 5/35 × 5 = 250/175 - Subtract the two like fractions:
147/175 - 250/175 = 147 - 250/175 = -103/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25-50/35 21/50-50/35 21/25-50/70 63/25-50/35 21/75-50/35