Subtract 81/60 from 21/98
1st number: 21/98, 2nd number: 1 21/60
21/98 - 81/60 is -159/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 60 is 2940
Next, find the equivalent fraction of both fractional numbers with denominator 2940 - For the 1st fraction, since 98 × 30 = 2940,
21/98 = 21 × 30/98 × 30 = 630/2940 - Likewise, for the 2nd fraction, since 60 × 49 = 2940,
81/60 = 81 × 49/60 × 49 = 3969/2940 - Subtract the two like fractions:
630/2940 - 3969/2940 = 630 - 3969/2940 = -3339/2940 - After reducing the fraction, the answer is -159/140
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