Subtract 7/56 from 72/42
1st number: 1 30/42, 2nd number: 7/56
72/42 - 7/56 is 89/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
72/42 = 72 × 4/42 × 4 = 288/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
7/56 = 7 × 3/56 × 3 = 21/168 - Subtract the two like fractions:
288/168 - 21/168 = 288 - 21/168 = 267/168 - After reducing the fraction, the answer is 89/56
- In mixed form: 133/56
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