Subtract 9/40 from 90/96
90/96 - 9/40 is 57/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 40 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 96 × 5 = 480,
90/96 = 90 × 5/96 × 5 = 450/480 - Likewise, for the 2nd fraction, since 40 × 12 = 480,
9/40 = 9 × 12/40 × 12 = 108/480 - Subtract the two like fractions:
450/480 - 108/480 = 450 - 108/480 = 342/480 - After reducing the fraction, the answer is 57/80
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