Subtract 42/72 from 1/6
1/6 - 42/72 is -5/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
1/6 = 1 × 12/6 × 12 = 12/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Subtract the two like fractions:
12/72 - 42/72 = 12 - 42/72 = -30/72 - After reducing the fraction, the answer is -5/12
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