Answers

Add 80/84 and 18/9

1^st number: 80/84, 2^nd number: 2 0/9

80/84 + 18/9 is 62/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 9 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   80/84 = 80 × 3/84 × 3 = 240/252
3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
   18/9 = 18 × 28/9 × 28 = 504/252
4. Add the two like fractions:
   240/252 + 504/252 = 240 + 504/252 = 744/252
5. 744/252 simplified gives 62/21
6. So, 80/84 + 18/9 = 62/21
   In mixed form: 220/21

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