Subtract 36/72 from 6/42
6/42 - 36/72 is -5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
6/42 = 6 × 12/42 × 12 = 72/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
36/72 = 36 × 7/72 × 7 = 252/504 - Subtract the two like fractions:
72/504 - 252/504 = 72 - 252/504 = -180/504 - After reducing the fraction, the answer is -5/14
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