Subtract 81/75 from 20/30
1st number: 20/30, 2nd number: 1 6/75
20/30 - 81/75 is -31/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
20/30 = 20 × 5/30 × 5 = 100/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
81/75 = 81 × 2/75 × 2 = 162/150 - Subtract the two like fractions:
100/150 - 162/150 = 100 - 162/150 = -62/150 - After reducing the fraction, the answer is -31/75
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