Subtract 18/63 from 63/42
1st number: 1 21/42, 2nd number: 18/63
63/42 - 18/63 is 17/14.
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,
63/42 = 63 × 3/42 × 3 = 189/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
18/63 = 18 × 2/63 × 2 = 36/126 - Subtract the two like fractions:
189/126 - 36/126 = 189 - 36/126 = 153/126 - After reducing the fraction, the answer is 17/14
- In mixed form: 13/14
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