Subtract 20/14 from 42/9
1st number: 4 6/9, 2nd number: 1 6/14
42/9 - 20/14 is 68/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
42/9 = 42 × 14/9 × 14 = 588/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
20/14 = 20 × 9/14 × 9 = 180/126 - Subtract the two like fractions:
588/126 - 180/126 = 588 - 180/126 = 408/126 - After reducing the fraction, the answer is 68/21
- In mixed form: 35/21
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