Subtract 12/20 from 42/96
42/96 - 12/20 is -13/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 20 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 96 × 5 = 480,
42/96 = 42 × 5/96 × 5 = 210/480 - Likewise, for the 2nd fraction, since 20 × 24 = 480,
12/20 = 12 × 24/20 × 24 = 288/480 - Subtract the two like fractions:
210/480 - 288/480 = 210 - 288/480 = -78/480 - After reducing the fraction, the answer is -13/80
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