Subtract 54/56 from 50/21
1st number: 2 8/21, 2nd number: 54/56
50/21 - 54/56 is 17/12.
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,
50/21 = 50 × 8/21 × 8 = 400/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
54/56 = 54 × 3/56 × 3 = 162/168 - Subtract the two like fractions:
400/168 - 162/168 = 400 - 162/168 = 238/168 - After reducing the fraction, the answer is 17/12
- In mixed form: 15/12
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