Answers

Add 84/36 and 30/20

1^st number: 2 12/36, 2^nd number: 1 10/20

84/36 + 30/20 is 23/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 20 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 36 × 5 = 180,
   84/36 = 84 × 5/36 × 5 = 420/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   30/20 = 30 × 9/20 × 9 = 270/180
4. Add the two like fractions:
   420/180 + 270/180 = 420 + 270/180 = 690/180
5. 690/180 simplified gives 23/6
6. So, 84/36 + 30/20 = 23/6
   In mixed form: 35/6

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