Add 90/84 and 7/81
1st number: 1 6/84, 2nd number: 7/81
90/84 + 7/81 is 1313/1134.
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,
90/84 = 90 × 27/84 × 27 = 2430/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
7/81 = 7 × 28/81 × 28 = 196/2268 - Add the two like fractions:
2430/2268 + 196/2268 = 2430 + 196/2268 = 2626/2268 - 2626/2268 simplified gives 1313/1134
- So, 90/84 + 7/81 = 1313/1134
In mixed form: 1179/1134
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