Subtract 49/36 from 12/21
1st number: 12/21, 2nd number: 1 13/36
12/21 - 49/36 is -199/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
12/21 = 12 × 12/21 × 12 = 144/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
49/36 = 49 × 7/36 × 7 = 343/252 - Subtract the two like fractions:
144/252 - 343/252 = 144 - 343/252 = -199/252
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