Subtract 56/7 from 72/42
1st number: 1 30/42, 2nd number: 8 0/7
72/42 - 56/7 is -44/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
72/42 = 72 × 1/42 × 1 = 72/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
56/7 = 56 × 6/7 × 6 = 336/42 - Subtract the two like fractions:
72/42 - 336/42 = 72 - 336/42 = -264/42 - After reducing the fraction, the answer is -44/7
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