Answers

Add 25/42 and 15/63

25/42 + 15/63 is 5/6.

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,
   25/42 = 25 × 3/42 × 3 = 75/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   15/63 = 15 × 2/63 × 2 = 30/126
4. Add the two like fractions:
   75/126 + 30/126 = 75 + 30/126 = 105/126
5. 105/126 simplified gives 5/6
6. So, 25/42 + 15/63 = 5/6

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