Subtract 42/16 from 90/54
1st number: 1 36/54, 2nd number: 2 10/16
90/54 - 42/16 is -23/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 16 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
90/54 = 90 × 8/54 × 8 = 720/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
42/16 = 42 × 27/16 × 27 = 1134/432 - Subtract the two like fractions:
720/432 - 1134/432 = 720 - 1134/432 = -414/432 - After reducing the fraction, the answer is -23/24
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