Subtract 90/40 from 7/8
1st number: 7/8, 2nd number: 2 10/40
7/8 - 90/40 is -11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
7/8 = 7 × 5/8 × 5 = 35/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
90/40 = 90 × 1/40 × 1 = 90/40 - Subtract the two like fractions:
35/40 - 90/40 = 35 - 90/40 = -55/40 - After reducing the fraction, the answer is -11/8
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