Subtract 21/60 from 81/2
1st number: 40 1/2, 2nd number: 21/60
81/2 - 21/60 is 803/20.
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,
81/2 = 81 × 30/2 × 30 = 2430/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Subtract the two like fractions:
2430/60 - 21/60 = 2430 - 21/60 = 2409/60 - After reducing the fraction, the answer is 803/20
- In mixed form: 403/20
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