Subtract 81/36 from 2/28
1st number: 2/28, 2nd number: 2 9/36
2/28 - 81/36 is -61/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
2/28 = 2 × 9/28 × 9 = 18/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
81/36 = 81 × 7/36 × 7 = 567/252 - Subtract the two like fractions:
18/252 - 567/252 = 18 - 567/252 = -549/252 - After reducing the fraction, the answer is -61/28
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