Answers

Add 20/2 and 63/21

1^st number: 10 0/2, 2^nd number: 3 0/21

20/2 + 63/21 is 13/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 2 × 21 = 42,
   20/2 = 20 × 21/2 × 21 = 420/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   63/21 = 63 × 2/21 × 2 = 126/42
4. Add the two like fractions:
   420/42 + 126/42 = 420 + 126/42 = 546/42
5. 546/42 simplified gives 13/1
6. So, 20/2 + 63/21 = 13/1

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