Answers

Add 18/63 and 84/18

1^st number: 18/63, 2^nd number: 4 12/18

18/63 + 84/18 is 104/21.

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,
   18/63 = 18 × 2/63 × 2 = 36/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   84/18 = 84 × 7/18 × 7 = 588/126
4. Add the two like fractions:
   36/126 + 588/126 = 36 + 588/126 = 624/126
5. 624/126 simplified gives 104/21
6. So, 18/63 + 84/18 = 104/21
   In mixed form: 420/21

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