Subtract 50/21 from 35/36
1st number: 35/36, 2nd number: 2 8/21
35/36 - 50/21 is -355/252.
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,
50/21 = 50 × 12/21 × 12 = 600/252 - Subtract the two like fractions:
245/252 - 600/252 = 245 - 600/252 = -355/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36-50/21 35/72-50/21 35/36-50/42 35/36-50/63