Subtract 4/63 from 8/18
8/18 - 4/63 is 8/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
4/63 = 4 × 2/63 × 2 = 8/126 - Subtract the two like fractions:
56/126 - 8/126 = 56 - 8/126 = 48/126 - After reducing the fraction, the answer is 8/21
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