Subtract 42/18 from 12/6
1st number: 2 0/6, 2nd number: 2 6/18
12/6 - 42/18 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
12/6 = 12 × 3/6 × 3 = 36/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
42/18 = 42 × 1/18 × 1 = 42/18 - Subtract the two like fractions:
36/18 - 42/18 = 36 - 42/18 = -6/18 - After reducing the fraction, the answer is -1/3
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