If half of Karen's collection (4) is 1/3 of Mary's, and half of Karen's collection is 2, then 2 x 3 is how many Mary has, right? Once you know how many books Mary has, you can add how many Karen has to get your answer.
Line DE is 4 squares and Line BC is 8 squares.
The length of line DE is 1/2 of line BC
If you would like to solve the above problem, you can do this using the following steps:
1.2 miles * 7 days = 1.2 * 7 = 8.4 miles ... Multiply 1.2 by 7.
2.4 miles * 7 days = 2.4 * 7 = 16.8 miles ... Multiply 2.4 by 7.
8.4 miles + 16.8 miles = 25.2 miles ... Add the two products.
The correct result would be A.
Well you could do 5 3/8 plus 3 1/4 and your denominator 4 can become a 8 so multiply 4x2 to get 8 and 2x1 to get 3 2/8 and add that to 5 3/8 to get the sum of 8 7/8