Subtract 20/12 from 81/2
1st number: 40 1/2, 2nd number: 1 8/12
81/2 - 20/12 is 233/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 2 × 6 = 12,
81/2 = 81 × 6/2 × 6 = 486/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
20/12 = 20 × 1/12 × 1 = 20/12 - Subtract the two like fractions:
486/12 - 20/12 = 486 - 20/12 = 466/12 - After reducing the fraction, the answer is 233/6
- In mixed form: 385/6
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