Subtract 3/4 from 18/63
18/63 - 3/4 is -13/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
18/63 = 18 × 4/63 × 4 = 72/252 - Likewise, for the 2nd fraction, since 4 × 63 = 252,
3/4 = 3 × 63/4 × 63 = 189/252 - Subtract the two like fractions:
72/252 - 189/252 = 72 - 189/252 = -117/252 - After reducing the fraction, the answer is -13/28
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