Add 84/81 and 90/84
1st number: 1 3/81, 2nd number: 1 6/84
84/81 + 90/84 is 797/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 84 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
84/81 = 84 × 28/81 × 28 = 2352/2268 - Likewise, for the 2nd fraction, since 84 × 27 = 2268,
90/84 = 90 × 27/84 × 27 = 2430/2268 - Add the two like fractions:
2352/2268 + 2430/2268 = 2352 + 2430/2268 = 4782/2268 - 4782/2268 simplified gives 797/378
- So, 84/81 + 90/84 = 797/378
In mixed form: 241/378
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