Subtract 63/4 from 90/72
1st number: 1 18/72, 2nd number: 15 3/4
90/72 - 63/4 is -29/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 4 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Likewise, for the 2nd fraction, since 4 × 18 = 72,
63/4 = 63 × 18/4 × 18 = 1134/72 - Subtract the two like fractions:
90/72 - 1134/72 = 90 - 1134/72 = -1044/72 - After reducing the fraction, the answer is -29/2
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