Question

http://i.imgur.com/csaJsQ8.png

Answer 1

?

Answer 2

In order to subtract the fractions, the denominators have to be the same number or expression.

Answer 3

\[\frac{4}{5}-\frac{2}{5}=\frac{4-2}{5}\]
what @jim_thompson5910 said

Answer 4

They are both 5, so we can subtract. You subtract the fractions by subtracting the numerators (in the same order) and placing that result over the common denominator of 5.

Answer 5

so it's b

Answer 6

look at satellite73's post

Answer 7

finish up what satellite73 wrote

Answer 8

so it's c

Answer 9

yep