Subtract 21/16 from 21/60
1st number: 21/60, 2nd number: 1 5/16
21/60 - 21/16 is -77/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 60 × 4 = 240,
21/60 = 21 × 4/60 × 4 = 84/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
21/16 = 21 × 15/16 × 15 = 315/240 - Subtract the two like fractions:
84/240 - 315/240 = 84 - 315/240 = -231/240 - After reducing the fraction, the answer is -77/80
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