Subtract 42/12 from 9/14
1st number: 9/14, 2nd number: 3 6/12
9/14 - 42/12 is -20/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
9/14 = 9 × 6/14 × 6 = 54/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
42/12 = 42 × 7/12 × 7 = 294/84 - Subtract the two like fractions:
54/84 - 294/84 = 54 - 294/84 = -240/84 - After reducing the fraction, the answer is -20/7
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