Subtract 14/81 from 28/42
28/42 - 14/81 is 40/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
28/42 = 28 × 27/42 × 27 = 756/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
14/81 = 14 × 14/81 × 14 = 196/1134 - Subtract the two like fractions:
756/1134 - 196/1134 = 756 - 196/1134 = 560/1134 - After reducing the fraction, the answer is 40/81
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