Subtract 81/14 from 20/27
1st number: 20/27, 2nd number: 5 11/14
20/27 - 81/14 is -1907/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 14 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
20/27 = 20 × 14/27 × 14 = 280/378 - Likewise, for the 2nd fraction, since 14 × 27 = 378,
81/14 = 81 × 27/14 × 27 = 2187/378 - Subtract the two like fractions:
280/378 - 2187/378 = 280 - 2187/378 = -1907/378
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