Subtract 81/56 from 24/42
1st number: 24/42, 2nd number: 1 25/56
24/42 - 81/56 is -7/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
24/42 = 24 × 4/42 × 4 = 96/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
81/56 = 81 × 3/56 × 3 = 243/168 - Subtract the two like fractions:
96/168 - 243/168 = 96 - 243/168 = -147/168 - After reducing the fraction, the answer is -7/8
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