Answers

Add 21/42 and 5/63

21/42 + 5/63 is 73/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 42 × 3 = 126,
   21/42 = 21 × 3/42 × 3 = 63/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   5/63 = 5 × 2/63 × 2 = 10/126
4. Add the two like fractions:
   63/126 + 10/126 = 63 + 10/126 = 73/126
5. So, 21/42 + 5/63 = 73/126

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