Solve the following problem: Asia walks 2 1/4 miles to the park and then another 1 6/8 miles to her friend’s house. How many miles does she walk in all?
A : 1/2
B : 3 7/8
C : 3
D : 4
Asia walks 2 1/4 miles to the park, which can be written as 2 + 1/4 = 2.25 miles.
She then walks another 1 6/8 miles to her friend's house, which can be written as 1 + 6/8 = 1.75 miles.
To find how many miles she walks in all, we add the distances together: 2.25 + 1.75 = 4 miles.
Therefore, Asia walks a total of 4 miles. The answer is (D) 4.