Subtract 27/84 from 5/20
5/20 - 27/84 is -1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
5/20 = 5 × 21/20 × 21 = 105/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
27/84 = 27 × 5/84 × 5 = 135/420 - Subtract the two like fractions:
105/420 - 135/420 = 105 - 135/420 = -30/420 - After reducing the fraction, the answer is -1/14
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