Subtract 81/60 from 1/15
1st number: 1/15, 2nd number: 1 21/60
1/15 - 81/60 is -77/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
1/15 = 1 × 4/15 × 4 = 4/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Subtract the two like fractions:
4/60 - 81/60 = 4 - 81/60 = -77/60
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