Subtract 4/21 from 35/36
35/36 - 4/21 is 197/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
35/36 = 35 × 7/36 × 7 = 245/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
4/21 = 4 × 12/21 × 12 = 48/252 - Subtract the two like fractions:
245/252 - 48/252 = 245 - 48/252 = 197/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36-4/21 35/36-8/21 35/72-4/21 35/36-4/42 35/36-12/21 35/36-4/63 35/36-20/21 35/36-28/21