Subtract 81/60 from 7/10
1st number: 7/10, 2nd number: 1 21/60
7/10 - 81/60 is -13/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
7/10 = 7 × 6/10 × 6 = 42/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Subtract the two like fractions:
42/60 - 81/60 = 42 - 81/60 = -39/60 - After reducing the fraction, the answer is -13/20
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