Add 80/81 and 20/9
1st number: 80/81, 2nd number: 2 2/9
80/81 + 20/9 is 260/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 9 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
80/81 = 80 × 1/81 × 1 = 80/81 - Likewise, for the 2nd fraction, since 9 × 9 = 81,
20/9 = 20 × 9/9 × 9 = 180/81 - Add the two like fractions:
80/81 + 180/81 = 80 + 180/81 = 260/81 - So, 80/81 + 20/9 = 260/81
In mixed form: 317/81
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