Answers

Add 9/7 and 15/81

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

9/7 + 15/81 is 278/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 81 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 7 × 81 = 567,
   9/7 = 9 × 81/7 × 81 = 729/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   15/81 = 15 × 7/81 × 7 = 105/567
4. Add the two like fractions:
   729/567 + 105/567 = 729 + 105/567 = 834/567
5. 834/567 simplified gives 278/189
6. So, 9/7 + 15/81 = 278/189
   In mixed form: 189/189

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