I NEED HELP ON THIS CROWN FOR ANSWER

4 3/4 is the final answer

Step-by-step explanation:

Min stacks the top four of her thiccest books

Those books’ thicknesses are: 1 1/4, 1 1/4, 1 1/8, 1 1/8

First we need to convert the denominator into a common denominator (all the same denominators)

The closest common denominator is 8ths we convert 1/4 into 8ths

Now they all are 1 2/8, 1 2/8, 1 1/8, 1 1/8

Now we can sum them up

1 2/8 + 1 2/8 + 1 1/8 + 1 1/8 = 4 6/8

Now we simplify

We divide by 2 and get 4 and 3/4

4 3/4 is the final answer