Subtract 21/60 from 7/49
7/49 - 21/60 is -29/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 60 is 2940
Next, find the equivalent fraction of both fractional numbers with denominator 2940 - For the 1st fraction, since 49 × 60 = 2940,
7/49 = 7 × 60/49 × 60 = 420/2940 - Likewise, for the 2nd fraction, since 60 × 49 = 2940,
21/60 = 21 × 49/60 × 49 = 1029/2940 - Subtract the two like fractions:
420/2940 - 1029/2940 = 420 - 1029/2940 = -609/2940 - After reducing the fraction, the answer is -29/140
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