Answers

Add 2/27 and 15/21

2/27 + 15/21 is 149/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 21 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 27 × 7 = 189,
   2/27 = 2 × 7/27 × 7 = 14/189
3. Likewise, for the 2nd fraction, since 21 × 9 = 189,
   15/21 = 15 × 9/21 × 9 = 135/189
4. Add the two like fractions:
   14/189 + 135/189 = 14 + 135/189 = 149/189
5. So, 2/27 + 15/21 = 149/189

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