Add 70/81 and 9/28
70/81 + 9/28 is 2689/2268.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 28 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 28 × 81 = 2268,
9/28 = 9 × 81/28 × 81 = 729/2268 - Add the two like fractions:
1960/2268 + 729/2268 = 1960 + 729/2268 = 2689/2268 - So, 70/81 + 9/28 = 2689/2268
In mixed form: 1421/2268
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