Answers

Add 21/63 and 42/63

21/63 + 42/63 is 1/1.

Steps for adding fractions

1. Add the two fractions:
   21/63 + 42/63 = 21 + 42/63 = 63/63
2. 63/63 simplified gives 1/1
3. So, 21/63 + 42/63 = 1/1

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