Answers

Add 9/84 and 81/18

1^st number: 9/84, 2^nd number: 4 9/18

9/84 + 81/18 is 129/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 18 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   9/84 = 9 × 3/84 × 3 = 27/252
3. Likewise, for the 2nd fraction, since 18 × 14 = 252,
   81/18 = 81 × 14/18 × 14 = 1134/252
4. Add the two like fractions:
   27/252 + 1134/252 = 27 + 1134/252 = 1161/252
5. 1161/252 simplified gives 129/28
6. So, 9/84 + 81/18 = 129/28
   In mixed form: 417/28

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