Subtract 7/63 from 84/42
1st number: 2 0/42, 2nd number: 7/63
84/42 - 7/63 is 17/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 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 63 × 2 = 126,
7/63 = 7 × 2/63 × 2 = 14/126 - Subtract the two like fractions:
252/126 - 14/126 = 252 - 14/126 = 238/126 - After reducing the fraction, the answer is 17/9
- In mixed form: 18/9
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