Subtract 72/10 from 81/60
1st number: 1 21/60, 2nd number: 7 2/10
81/60 - 72/10 is -117/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
72/10 = 72 × 6/10 × 6 = 432/60 - Subtract the two like fractions:
81/60 - 432/60 = 81 - 432/60 = -351/60 - After reducing the fraction, the answer is -117/20
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