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express your answer in simplest mixed-number form. 2 3/4 + 4 3/4

To solve this problem, the easiest way is to first add the whole numbers and then add the fractions.  After that, we can further simplify the number.

2 3/4 + 4 3/4 

First we add the whole numbers.

2 + 4 = 6.

Next, we add the fractions.

3/4 + 3/4 = 6/4.

So, your answer is 6 6/4.

However, this answer is not in simplest mixed-number form, because 6/4 is more than one, or an improper fraction.

6 6/4 = 7 2/4

However, 2/4 isn't in simplest form.

7 2/4 = 7 1/2

So, 

2 3/4 + 4 3/4 = 7 1/2

11/2.2 = 5 inches for the length 8.5/2.2= 3.86 inches for the width