Answers

Add 20/36 and 16/9

1^st number: 20/36, 2^nd number: 1 7/9

20/36 + 16/9 is 7/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 9 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 36 × 1 = 36,
   20/36 = 20 × 1/36 × 1 = 20/36
3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
   16/9 = 16 × 4/9 × 4 = 64/36
4. Add the two like fractions:
   20/36 + 64/36 = 20 + 64/36 = 84/36
5. 84/36 simplified gives 7/3
6. So, 20/36 + 16/9 = 7/3
   In mixed form: 21/3

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