Subtract 9/18 from 42/63
42/63 - 9/18 is 1/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
42/63 = 42 × 2/63 × 2 = 84/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
9/18 = 9 × 7/18 × 7 = 63/126 - Subtract the two like fractions:
84/126 - 63/126 = 84 - 63/126 = 21/126 - After reducing the fraction, the answer is 1/6
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