Subtract 90/48 from 18/28
1st number: 18/28, 2nd number: 1 42/48
18/28 - 90/48 is -69/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
18/28 = 18 × 12/28 × 12 = 216/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
90/48 = 90 × 7/48 × 7 = 630/336 - Subtract the two like fractions:
216/336 - 630/336 = 216 - 630/336 = -414/336 - After reducing the fraction, the answer is -69/56
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