Subtract 42/81 from 28/14
1st number: 2 0/14, 2nd number: 42/81
28/14 - 42/81 is 40/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 14 × 81 = 1134,
28/14 = 28 × 81/14 × 81 = 2268/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
42/81 = 42 × 14/81 × 14 = 588/1134 - Subtract the two like fractions:
2268/1134 - 588/1134 = 2268 - 588/1134 = 1680/1134 - After reducing the fraction, the answer is 40/27
- In mixed form: 113/27
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