Answers

Add 15/7 and 4/27

1^st number: 2 1/7, 2^nd number: 4/27

15/7 + 4/27 is 433/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 27 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 7 × 27 = 189,
   15/7 = 15 × 27/7 × 27 = 405/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   4/27 = 4 × 7/27 × 7 = 28/189
4. Add the two like fractions:
   405/189 + 28/189 = 405 + 28/189 = 433/189
5. So, 15/7 + 4/27 = 433/189
   In mixed form: 255/189

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