Subtract 81/84 from 42/24
1st number: 1 18/24, 2nd number: 81/84
42/24 - 81/84 is 11/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
81/84 = 81 × 2/84 × 2 = 162/168 - Subtract the two like fractions:
294/168 - 162/168 = 294 - 162/168 = 132/168 - After reducing the fraction, the answer is 11/14
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