Subtract 54/56 from 42/12
1st number: 3 6/12, 2nd number: 54/56
42/12 - 54/56 is 71/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
42/12 = 42 × 14/12 × 14 = 588/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
54/56 = 54 × 3/56 × 3 = 162/168 - Subtract the two like fractions:
588/168 - 162/168 = 588 - 162/168 = 426/168 - After reducing the fraction, the answer is 71/28
- In mixed form: 215/28
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