Subtract 81/12 from 12/8
1st number: 1 4/8, 2nd number: 6 9/12
12/8 - 81/12 is -21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
12/8 = 12 × 3/8 × 3 = 36/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
81/12 = 81 × 2/12 × 2 = 162/24 - Subtract the two like fractions:
36/24 - 162/24 = 36 - 162/24 = -126/24 - After reducing the fraction, the answer is -21/4
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