Question

How do i solve Solve 4/9=x/45.

Answer 1

x = 20

Explanation:

I would say that there are two ways to solve this.

First way:

You could simply this equation be cross multiplying.

4/9 = x/45 → 180 = 9x

Next, divide 180 by 9.

20 = x → x = 20

Second way:

Considering that fraction bars mean division, you could cancel out x/45 by multiplying both fractions by 45.

4/9 = x/45 → 20 = x → x = 20

Answer 2

You multiply 45 on both sides and get x=20