Subtract 42/9 from 20/14
1st number: 1 6/14, 2nd number: 4 6/9
20/14 - 42/9 is -68/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
20/14 = 20 × 9/14 × 9 = 180/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
42/9 = 42 × 14/9 × 14 = 588/126 - Subtract the two like fractions:
180/126 - 588/126 = 180 - 588/126 = -408/126 - After reducing the fraction, the answer is -68/21
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