Answers

Add 36/20 and 28/90

1^st number: 1 16/20, 2^nd number: 28/90

36/20 + 28/90 is 19/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   36/20 = 36 × 9/20 × 9 = 324/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   28/90 = 28 × 2/90 × 2 = 56/180
4. Add the two like fractions:
   324/180 + 56/180 = 324 + 56/180 = 380/180
5. 380/180 simplified gives 19/9
6. So, 36/20 + 28/90 = 19/9
   In mixed form: 21/9

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