Subtract 90/96 from 9/20
9/20 - 90/96 is -39/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 96 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 20 × 24 = 480,
9/20 = 9 × 24/20 × 24 = 216/480 - Likewise, for the 2nd fraction, since 96 × 5 = 480,
90/96 = 90 × 5/96 × 5 = 450/480 - Subtract the two like fractions:
216/480 - 450/480 = 216 - 450/480 = -234/480 - After reducing the fraction, the answer is -39/80
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