Subtract 5/56 from 12/21
12/21 - 5/56 is 27/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
12/21 = 12 × 8/21 × 8 = 96/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
5/56 = 5 × 3/56 × 3 = 15/168 - Subtract the two like fractions:
96/168 - 15/168 = 96 - 15/168 = 81/168 - After reducing the fraction, the answer is 27/56
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