Subtract 5/56 from 21/36
21/36 - 5/56 is 83/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 36 × 14 = 504,
21/36 = 21 × 14/36 × 14 = 294/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
5/56 = 5 × 9/56 × 9 = 45/504 - Subtract the two like fractions:
294/504 - 45/504 = 294 - 45/504 = 249/504 - After reducing the fraction, the answer is 83/168
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