Answers

Add 12/63 and 6/18

12/63 + 6/18 is 11/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   12/63 = 12 × 2/63 × 2 = 24/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   6/18 = 6 × 7/18 × 7 = 42/126
4. Add the two like fractions:
   24/126 + 42/126 = 24 + 42/126 = 66/126
5. 66/126 simplified gives 11/21
6. So, 12/63 + 6/18 = 11/21

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