Question

I have this problem and i cant figure out what i should do with it: http://i.imgur.com/aQGov.png

Answer 1

use a calculator lol

Answer 2

How? Do i give it a common denominator or what?

Answer 3

Yeah, use 18 has the common denominator.

Answer 4

Well, look:
\[\frac{7\sqrt{2}}{2} \times \frac{9}{9} + \frac{8\sqrt{2}}{9} \times \frac22\]\[\frac{63\sqrt{2}}{18} + \frac{16\sqrt{2}}{18} = ?\]

Answer 5

so then it becomes \[79 \sqrt{2} \over 18?\] correct?

Answer 6

Yup

Answer 7

It took it. Thanks guys :)

Answer 8

np :)