Subtract 7/24 from 18/63
18/63 - 7/24 is -1/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 24 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
18/63 = 18 × 8/63 × 8 = 144/504 - Likewise, for the 2nd fraction, since 24 × 21 = 504,
7/24 = 7 × 21/24 × 21 = 147/504 - Subtract the two like fractions:
144/504 - 147/504 = 144 - 147/504 = -3/504 - After reducing the fraction, the answer is -1/168
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