Add 84/3 and 21/81
1st number: 28 0/3, 2nd number: 21/81
84/3 + 21/81 is 763/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
84/3 = 84 × 27/3 × 27 = 2268/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
21/81 = 21 × 1/81 × 1 = 21/81 - Add the two like fractions:
2268/81 + 21/81 = 2268 + 21/81 = 2289/81 - 2289/81 simplified gives 763/27
- So, 84/3 + 21/81 = 763/27
In mixed form: 287/27
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