Subtract 84/96 from 21/30
21/30 - 84/96 is -7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 96 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
21/30 = 21 × 16/30 × 16 = 336/480 - Likewise, for the 2nd fraction, since 96 × 5 = 480,
84/96 = 84 × 5/96 × 5 = 420/480 - Subtract the two like fractions:
336/480 - 420/480 = 336 - 420/480 = -84/480 - After reducing the fraction, the answer is -7/40
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