Answers

Add 36/20 and 21/80

1^st number: 1 16/20, 2^nd number: 21/80

36/20 + 21/80 is 33/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 20 × 4 = 80,
   36/20 = 36 × 4/20 × 4 = 144/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   21/80 = 21 × 1/80 × 1 = 21/80
4. Add the two like fractions:
   144/80 + 21/80 = 144 + 21/80 = 165/80
5. 165/80 simplified gives 33/16
6. So, 36/20 + 21/80 = 33/16
   In mixed form: 21/16

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