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
