Shella practiced 1-1/2 hours Monday, 3-3/4 hours Tuesday, and 2-1/2 hours Wednesday. What is the total number of hours that she practiced?

Answer 1

change your mixed fractions to
3/2 , 15/4 and 5/2

using a common denominator of 4, add them up

Answer 2

or, add up
1.5, 3.75, and 2.5

Answer 3

7 HOOURS AND 45 MIN