Subtract 8/56 from 20/84
20/84 - 8/56 is 2/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
20/84 = 20 × 2/84 × 2 = 40/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
8/56 = 8 × 3/56 × 3 = 24/168 - Subtract the two like fractions:
40/168 - 24/168 = 40 - 24/168 = 16/168 - After reducing the fraction, the answer is 2/21
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