Add 7/9 and 20/81
7/9 + 20/81 is 83/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
7/9 = 7 × 9/9 × 9 = 63/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
20/81 = 20 × 1/81 × 1 = 20/81 - Add the two like fractions:
63/81 + 20/81 = 63 + 20/81 = 83/81 - So, 7/9 + 20/81 = 83/81
In mixed form: 12/81
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