Add 4/9 and 28/81
4/9 + 28/81 is 64/81.
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,
4/9 = 4 × 9/9 × 9 = 36/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
28/81 = 28 × 1/81 × 1 = 28/81 - Add the two like fractions:
36/81 + 28/81 = 36 + 28/81 = 64/81 - So, 4/9 + 28/81 = 64/81
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