Subtract 81/60 from 42/2
1st number: 21 0/2, 2nd number: 1 21/60
42/2 - 81/60 is 393/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 2 × 30 = 60,
42/2 = 42 × 30/2 × 30 = 1260/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Subtract the two like fractions:
1260/60 - 81/60 = 1260 - 81/60 = 1179/60 - After reducing the fraction, the answer is 393/20
- In mixed form: 1913/20
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