Subtract 63/4 from 90/8
1st number: 11 2/8, 2nd number: 15 3/4
90/8 - 63/4 is -9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 4 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 8 × 1 = 8,
90/8 = 90 × 1/8 × 1 = 90/8 - Likewise, for the 2nd fraction, since 4 × 2 = 8,
63/4 = 63 × 2/4 × 2 = 126/8 - Subtract the two like fractions:
90/8 - 126/8 = 90 - 126/8 = -36/8 - After reducing the fraction, the answer is -9/2
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