Subtract 7/42 from 81/14
1st number: 5 11/14, 2nd number: 7/42
81/14 - 7/42 is 118/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
81/14 = 81 × 3/14 × 3 = 243/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
7/42 = 7 × 1/42 × 1 = 7/42 - Subtract the two like fractions:
243/42 - 7/42 = 243 - 7/42 = 236/42 - After reducing the fraction, the answer is 118/21
- In mixed form: 513/21
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