Subtract 2/42 from 20/63
20/63 - 2/42 is 17/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
20/63 = 20 × 2/63 × 2 = 40/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
2/42 = 2 × 3/42 × 3 = 6/126 - Subtract the two like fractions:
40/126 - 6/126 = 40 - 6/126 = 34/126 - After reducing the fraction, the answer is 17/63
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