Answers

Add 42/81 and 4/9

42/81 + 4/9 is 26/27.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 81 × 1 = 81,
   42/81 = 42 × 1/81 × 1 = 42/81
3. Likewise, for the 2nd fraction, since 9 × 9 = 81,
   4/9 = 4 × 9/9 × 9 = 36/81
4. Add the two like fractions:
   42/81 + 36/81 = 42 + 36/81 = 78/81
5. 78/81 simplified gives 26/27
6. So, 42/81 + 4/9 = 26/27

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