Subtract 81/14 from 21/2
1st number: 10 1/2, 2nd number: 5 11/14
21/2 - 81/14 is 33/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 14 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
21/2 = 21 × 7/2 × 7 = 147/14 - Likewise, for the 2nd fraction, since 14 × 1 = 14,
81/14 = 81 × 1/14 × 1 = 81/14 - Subtract the two like fractions:
147/14 - 81/14 = 147 - 81/14 = 66/14 - After reducing the fraction, the answer is 33/7
- In mixed form: 45/7
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