Answers

Add 30/64 and 15/81

30/64 + 15/81 is 565/864.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 81 is 5184
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5184
2. For the 1st fraction, since 64 × 81 = 5184,
   30/64 = 30 × 81/64 × 81 = 2430/5184
3. Likewise, for the 2nd fraction, since 81 × 64 = 5184,
   15/81 = 15 × 64/81 × 64 = 960/5184
4. Add the two like fractions:
   2430/5184 + 960/5184 = 2430 + 960/5184 = 3390/5184
5. 3390/5184 simplified gives 565/864
6. So, 30/64 + 15/81 = 565/864

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