Subtract 81/32 from 20/30
1st number: 20/30, 2nd number: 2 17/32
20/30 - 81/32 is -179/96.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
20/30 = 20 × 16/30 × 16 = 320/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
81/32 = 81 × 15/32 × 15 = 1215/480 - Subtract the two like fractions:
320/480 - 1215/480 = 320 - 1215/480 = -895/480 - After reducing the fraction, the answer is -179/96
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