Subtract 42/72 from 2/63
2/63 - 42/72 is -139/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
2/63 = 2 × 8/63 × 8 = 16/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
42/72 = 42 × 7/72 × 7 = 294/504 - Subtract the two like fractions:
16/504 - 294/504 = 16 - 294/504 = -278/504 - After reducing the fraction, the answer is -139/252
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