Subtract 49/42 from 49/72
1st number: 49/72, 2nd number: 1 7/42
49/72 - 49/42 is -35/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
49/72 = 49 × 7/72 × 7 = 343/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
49/42 = 49 × 12/42 × 12 = 588/504 - Subtract the two like fractions:
343/504 - 588/504 = 343 - 588/504 = -245/504 - After reducing the fraction, the answer is -35/72
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