Subtract 2/18 from 81/7
1st number: 11 4/7, 2nd number: 2/18
81/7 - 2/18 is 722/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
81/7 = 81 × 18/7 × 18 = 1458/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
2/18 = 2 × 7/18 × 7 = 14/126 - Subtract the two like fractions:
1458/126 - 14/126 = 1458 - 14/126 = 1444/126 - After reducing the fraction, the answer is 722/63
- In mixed form: 1129/63
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