Subtract 42/9 from 84/42
1st number: 2 0/42, 2nd number: 4 6/9
84/42 - 42/9 is -8/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
84/42 = 84 × 3/42 × 3 = 252/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
42/9 = 42 × 14/9 × 14 = 588/126 - Subtract the two like fractions:
252/126 - 588/126 = 252 - 588/126 = -336/126 - After reducing the fraction, the answer is -8/3
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