Add 84/42 and 7/81
1st number: 2 0/42, 2nd number: 7/81
84/42 + 7/81 is 169/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
84/42 = 84 × 27/42 × 27 = 2268/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
7/81 = 7 × 14/81 × 14 = 98/1134 - Add the two like fractions:
2268/1134 + 98/1134 = 2268 + 98/1134 = 2366/1134 - 2366/1134 simplified gives 169/81
- So, 84/42 + 7/81 = 169/81
In mixed form: 27/81
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