Subtract 24/20 from 81/60
1st number: 1 21/60, 2nd number: 1 4/20
81/60 - 24/20 is 3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 20 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 20 × 3 = 60,
24/20 = 24 × 3/20 × 3 = 72/60 - Subtract the two like fractions:
81/60 - 72/60 = 81 - 72/60 = 9/60 - After reducing the fraction, the answer is 3/20
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