Answer:

8 3/10

Step-by-step explanation:

2 8/10 + 5 1/2=8 3/10

first:

Solving the whole number parts

2 + 5 = 7

Solving the fraction parts

first: find the LCD of 8/10 and 1/2

LCD=10

8/10 + 5/10 = 13/10

Combining the whole and fraction parts

whole number: 7 and 1

fraction parts: 3/10

7+1+3/10=8 3/10