Subtract 27/28 from 10/84
10/84 - 27/28 is -71/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
10/84 = 10 × 1/84 × 1 = 10/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
27/28 = 27 × 3/28 × 3 = 81/84 - Subtract the two like fractions:
10/84 - 81/84 = 10 - 81/84 = -71/84
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