Subtract 90/40 from 15/16
1st number: 15/16, 2nd number: 2 10/40
15/16 - 90/40 is -21/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
15/16 = 15 × 5/16 × 5 = 75/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
90/40 = 90 × 2/40 × 2 = 180/80 - Subtract the two like fractions:
75/80 - 180/80 = 75 - 180/80 = -105/80 - After reducing the fraction, the answer is -21/16
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