Answers

Add 7/27 and 4/81

7/27 + 4/81 is 25/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 81 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 27 × 3 = 81,
   7/27 = 7 × 3/27 × 3 = 21/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   4/81 = 4 × 1/81 × 1 = 4/81
4. Add the two like fractions:
   21/81 + 4/81 = 21 + 4/81 = 25/81
5. So, 7/27 + 4/81 = 25/81

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