Subtract 72/6 from 42/12
1st number: 3 6/12, 2nd number: 12 0/6
42/12 - 72/6 is -17/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 6 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
42/12 = 42 × 1/12 × 1 = 42/12 - Likewise, for the 2nd fraction, since 6 × 2 = 12,
72/6 = 72 × 2/6 × 2 = 144/12 - Subtract the two like fractions:
42/12 - 144/12 = 42 - 144/12 = -102/12 - After reducing the fraction, the answer is -17/2
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