Subtract 21/7 from 49/36
1st number: 1 13/36, 2nd number: 3 0/7
49/36 - 21/7 is -59/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
49/36 = 49 × 7/36 × 7 = 343/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
21/7 = 21 × 36/7 × 36 = 756/252 - Subtract the two like fractions:
343/252 - 756/252 = 343 - 756/252 = -413/252 - After reducing the fraction, the answer is -59/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/36-21/7 49/36-42/7 49/72-21/7 49/36-21/14 49/36-63/7 49/36-21/35 49/36-21/49