Answers

Add 9/63 and 2/42

9/63 + 2/42 is 4/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 42 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   9/63 = 9 × 2/63 × 2 = 18/126
3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
   2/42 = 2 × 3/42 × 3 = 6/126
4. Add the two like fractions:
   18/126 + 6/126 = 18 + 6/126 = 24/126
5. 24/126 simplified gives 4/21
6. So, 9/63 + 2/42 = 4/21

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