How do you solve \frac { 2} { x } = \frac { 10} { 40}?

2 Answers
Aug 5, 2018

Do the opposite to solve for x

Explanation:

Start by removing the parenthesis represented by the division signs

x * 40 *( 2/x) = x *40 *( 10/40)

This results in

80 = 10 x

Next divide both sides by 10

80/10 = (10x)/10

The answer is

8 = x

Aug 5, 2018

x=8

Explanation:

We can use cross-multiplication to get

10x=80

Lastly, we can divide both sides by 10 to get

x=8

Hope this helps!