Answers

Add 45/16 and 27/80

1^st number: 2 13/16, 2^nd number: 27/80

45/16 + 27/80 is 63/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 16 × 5 = 80,
   45/16 = 45 × 5/16 × 5 = 225/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   27/80 = 27 × 1/80 × 1 = 27/80
4. Add the two like fractions:
   225/80 + 27/80 = 225 + 27/80 = 252/80
5. 252/80 simplified gives 63/20
6. So, 45/16 + 27/80 = 63/20
   In mixed form: 33/20

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