Answers

Add 8/20 and 84/63

1^st number: 8/20, 2^nd number: 1 21/63

8/20 + 84/63 is 26/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 63 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 20 × 63 = 1260,
   8/20 = 8 × 63/20 × 63 = 504/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   84/63 = 84 × 20/63 × 20 = 1680/1260
4. Add the two like fractions:
   504/1260 + 1680/1260 = 504 + 1680/1260 = 2184/1260
5. 2184/1260 simplified gives 26/15
6. So, 8/20 + 84/63 = 26/15
   In mixed form: 111/15

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