Answers

Add 20/42 and 7/63

20/42 + 7/63 is 37/63.

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,
   20/42 = 20 × 3/42 × 3 = 60/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   7/63 = 7 × 2/63 × 2 = 14/126
4. Add the two like fractions:
   60/126 + 14/126 = 60 + 14/126 = 74/126
5. 74/126 simplified gives 37/63
6. So, 20/42 + 7/63 = 37/63

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