Subtract 25/63 from 7/18
7/18 - 25/63 is -1/126.
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,
7/18 = 7 × 7/18 × 7 = 49/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
25/63 = 25 × 2/63 × 2 = 50/126 - Subtract the two like fractions:
49/126 - 50/126 = 49 - 50/126 = -1/126
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