Answers

Add 7/81 and 35/15

1^st number: 7/81, 2^nd number: 2 5/15

7/81 + 35/15 is 196/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 15 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 81 × 5 = 405,
   7/81 = 7 × 5/81 × 5 = 35/405
3. Likewise, for the 2nd fraction, since 15 × 27 = 405,
   35/15 = 35 × 27/15 × 27 = 945/405
4. Add the two like fractions:
   35/405 + 945/405 = 35 + 945/405 = 980/405
5. 980/405 simplified gives 196/81
6. So, 7/81 + 35/15 = 196/81
   In mixed form: 234/81

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