Subtract 81/28 from 42/48
1st number: 42/48, 2nd number: 2 25/28
42/48 - 81/28 is -113/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 28 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Likewise, for the 2nd fraction, since 28 × 12 = 336,
81/28 = 81 × 12/28 × 12 = 972/336 - Subtract the two like fractions:
294/336 - 972/336 = 294 - 972/336 = -678/336 - After reducing the fraction, the answer is -113/56
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