Add 81/7 and 3/18
1st number: 11 4/7, 2nd number: 3/18
81/7 + 3/18 is 493/42.
Steps for adding 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,
3/18 = 3 × 7/18 × 7 = 21/126 - Add the two like fractions:
1458/126 + 21/126 = 1458 + 21/126 = 1479/126 - 1479/126 simplified gives 493/42
- So, 81/7 + 3/18 = 493/42
In mixed form: 1131/42
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