Subtract 42/63 from 18/24
18/24 - 42/63 is 1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 24 × 21 = 504,
18/24 = 18 × 21/24 × 21 = 378/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
42/63 = 42 × 8/63 × 8 = 336/504 - Subtract the two like fractions:
378/504 - 336/504 = 378 - 336/504 = 42/504 - After reducing the fraction, the answer is 1/12
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