Answers

Add 42/63 and 9/18

42/63 + 9/18 is 7/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   42/63 = 42 × 2/63 × 2 = 84/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   9/18 = 9 × 7/18 × 7 = 63/126
4. Add the two like fractions:
   84/126 + 63/126 = 84 + 63/126 = 147/126
5. 147/126 simplified gives 7/6
6. So, 42/63 + 9/18 = 7/6
   In mixed form: 11/6

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