Answers

Add 20/63 and 90/4

1^st number: 20/63, 2^nd number: 22 2/4

20/63 + 90/4 is 2875/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 4 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 4 × 63 = 252,
   90/4 = 90 × 63/4 × 63 = 5670/252
4. Add the two like fractions:
   80/252 + 5670/252 = 80 + 5670/252 = 5750/252
5. 5750/252 simplified gives 2875/126
6. So, 20/63 + 90/4 = 2875/126
   In mixed form: 22103/126

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