Answers

Add 20/63 and 28/12

1^st number: 20/63, 2^nd number: 2 4/12

20/63 + 28/12 is 167/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 12 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   20/63 = 20 × 4/63 × 4 = 80/252
3. Likewise, for the 2nd fraction, since 12 × 21 = 252,
   28/12 = 28 × 21/12 × 21 = 588/252
4. Add the two like fractions:
   80/252 + 588/252 = 80 + 588/252 = 668/252
5. 668/252 simplified gives 167/63
6. So, 20/63 + 28/12 = 167/63
   In mixed form: 241/63

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