Subtract 81/12 from 7/2
1st number: 3 1/2, 2nd number: 6 9/12
7/2 - 81/12 is -13/4.
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,
7/2 = 7 × 6/2 × 6 = 42/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
81/12 = 81 × 1/12 × 1 = 81/12 - Subtract the two like fractions:
42/12 - 81/12 = 42 - 81/12 = -39/12 - After reducing the fraction, the answer is -13/4
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