Answers

Add 27/63 and 12/45

27/63 + 12/45 is 73/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   27/63 = 27 × 5/63 × 5 = 135/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   12/45 = 12 × 7/45 × 7 = 84/315
4. Add the two like fractions:
   135/315 + 84/315 = 135 + 84/315 = 219/315
5. 219/315 simplified gives 73/105
6. So, 27/63 + 12/45 = 73/105

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