Add 70/84 and 84/81
1st number: 70/84, 2nd number: 1 3/81
70/84 + 84/81 is 101/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 84 × 27 = 2268,
70/84 = 70 × 27/84 × 27 = 1890/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
84/81 = 84 × 28/81 × 28 = 2352/2268 - Add the two like fractions:
1890/2268 + 2352/2268 = 1890 + 2352/2268 = 4242/2268 - 4242/2268 simplified gives 101/54
- So, 70/84 + 84/81 = 101/54
In mixed form: 147/54
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