Subtract 1/35 from 21/50
21/50 - 1/35 is 137/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 35 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
21/50 = 21 × 7/50 × 7 = 147/350 - Likewise, for the 2nd fraction, since 35 × 10 = 350,
1/35 = 1 × 10/35 × 10 = 10/350 - Subtract the two like fractions:
147/350 - 10/350 = 147 - 10/350 = 137/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50-1/35 21/50-2/35 21/50-1/70 63/50-1/35 21/50-3/35 21/50-5/35 21/50-7/35