Add 81/28 and 84/81
1st number: 2 25/28, 2nd number: 1 3/81
81/28 + 84/81 is 2971/756.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 28 × 81 = 2268,
81/28 = 81 × 81/28 × 81 = 6561/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
84/81 = 84 × 28/81 × 28 = 2352/2268 - Add the two like fractions:
6561/2268 + 2352/2268 = 6561 + 2352/2268 = 8913/2268 - 8913/2268 simplified gives 2971/756
- So, 81/28 + 84/81 = 2971/756
In mixed form: 3703/756
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