Subtract 8/35 from 21/36
21/36 - 8/35 is 149/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 35 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
21/36 = 21 × 35/36 × 35 = 735/1260 - Likewise, for the 2nd fraction, since 35 × 36 = 1260,
8/35 = 8 × 36/35 × 36 = 288/1260 - Subtract the two like fractions:
735/1260 - 288/1260 = 735 - 288/1260 = 447/1260 - After reducing the fraction, the answer is 149/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36-8/35 21/36-16/35 21/72-8/35 21/36-8/70 63/36-8/35 21/36-24/35 21/36-40/35 21/36-56/35