Subtract 20/9 from 81/14
1st number: 5 11/14, 2nd number: 2 2/9
81/14 - 20/9 is 449/126.
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,
81/14 = 81 × 9/14 × 9 = 729/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
20/9 = 20 × 14/9 × 14 = 280/126 - Subtract the two like fractions:
729/126 - 280/126 = 729 - 280/126 = 449/126 - In mixed form: 371/126
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