Answers

Add 20/63 and 63/20

1^st number: 20/63, 2^nd number: 3 3/20

20/63 + 63/20 is 4369/1260.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 20 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   20/63 = 20 × 20/63 × 20 = 400/1260
3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
   63/20 = 63 × 63/20 × 63 = 3969/1260
4. Add the two like fractions:
   400/1260 + 3969/1260 = 400 + 3969/1260 = 4369/1260
5. So, 20/63 + 63/20 = 4369/1260
   In mixed form: 3589/1260

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