Subtract 18/4 from 81/14
1st number: 5 11/14, 2nd number: 4 2/4
81/14 - 18/4 is 9/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 14 × 2 = 28,
81/14 = 81 × 2/14 × 2 = 162/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
18/4 = 18 × 7/4 × 7 = 126/28 - Subtract the two like fractions:
162/28 - 126/28 = 162 - 126/28 = 36/28 - After reducing the fraction, the answer is 9/7
- In mixed form: 12/7
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