Subtract 81/8 from 90/48
1st number: 1 42/48, 2nd number: 10 1/8
90/48 - 81/8 is -33/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 8 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 48 × 1 = 48,
90/48 = 90 × 1/48 × 1 = 90/48 - Likewise, for the 2nd fraction, since 8 × 6 = 48,
81/8 = 81 × 6/8 × 6 = 486/48 - Subtract the two like fractions:
90/48 - 486/48 = 90 - 486/48 = -396/48 - After reducing the fraction, the answer is -33/4
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