Answers

Add 80/28 and 20/63

1^st number: 2 24/28, 2^nd number: 20/63

80/28 + 20/63 is 200/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 28 × 9 = 252,
   80/28 = 80 × 9/28 × 9 = 720/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   20/63 = 20 × 4/63 × 4 = 80/252
4. Add the two like fractions:
   720/252 + 80/252 = 720 + 80/252 = 800/252
5. 800/252 simplified gives 200/63
6. So, 80/28 + 20/63 = 200/63
   In mixed form: 311/63

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