Answers

Add 40/42 and 49/63

40/42 + 49/63 is 109/63.

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,
   40/42 = 40 × 3/42 × 3 = 120/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   49/63 = 49 × 2/63 × 2 = 98/126
4. Add the two like fractions:
   120/126 + 98/126 = 120 + 98/126 = 218/126
5. 218/126 simplified gives 109/63
6. So, 40/42 + 49/63 = 109/63
   In mixed form: 146/63

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