Answers

Add 12/63 and 20/49

12/63 + 20/49 is 88/147.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 49 is 441
   
   Next, find the equivalent fraction of both fractional numbers with denominator 441
2. For the 1st fraction, since 63 × 7 = 441,
   12/63 = 12 × 7/63 × 7 = 84/441
3. Likewise, for the 2nd fraction, since 49 × 9 = 441,
   20/49 = 20 × 9/49 × 9 = 180/441
4. Add the two like fractions:
   84/441 + 180/441 = 84 + 180/441 = 264/441
5. 264/441 simplified gives 88/147
6. So, 12/63 + 20/49 = 88/147

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