Subtract 20/7 from 81/14
1st number: 5 11/14, 2nd number: 2 6/7
81/14 - 20/7 is 41/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 14 × 1 = 14,
81/14 = 81 × 1/14 × 1 = 81/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
20/7 = 20 × 2/7 × 2 = 40/14 - Subtract the two like fractions:
81/14 - 40/14 = 81 - 40/14 = 41/14 - In mixed form: 213/14
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