Answers

Add 15/63 and 12/27

15/63 + 12/27 is 43/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 27 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 63 × 3 = 189,
   15/63 = 15 × 3/63 × 3 = 45/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   12/27 = 12 × 7/27 × 7 = 84/189
4. Add the two like fractions:
   45/189 + 84/189 = 45 + 84/189 = 129/189
5. 129/189 simplified gives 43/63
6. So, 15/63 + 12/27 = 43/63

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