Add 70/81 and 90/84
1st number: 70/81, 2nd number: 1 6/84
70/81 + 90/84 is 2195/1134.
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,
70/81 = 70 × 28/81 × 28 = 1960/2268 - Likewise, for the 2nd fraction, since 84 × 27 = 2268,
90/84 = 90 × 27/84 × 27 = 2430/2268 - Add the two like fractions:
1960/2268 + 2430/2268 = 1960 + 2430/2268 = 4390/2268 - 4390/2268 simplified gives 2195/1134
- So, 70/81 + 90/84 = 2195/1134
In mixed form: 11061/1134
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