8/18 = x/225

I don't understand :(

try something simple, like

3 = x/2

You want x all alone, so get rid of that pesky fraction. Since 2/2 = 1, multiply both sides by 2 and you get

3*2 = x/2 * 2
6 = x

Now, for your problem:

8/18 = x/225
You can clear the fraction on the left by multiplying by 18.

8/18 * 18 = x/225 * 18
8 = 18x/225
Now you want x all alone, so multiply by 225 to get

8*225 = 18x/225 * 225
1800 = 18x
Now divide by the a8 to get
100 = x

Of course, you don't have to clear both fractions, just the x/225:

8/18 * 225 = x
1800/18 = x
100 = x

http://www.mathsisfun.com/algebra/cross-multiply.html

To solve for "x" in the equation 8/18 = x/225, we can use the concept of cross-multiplication.

Cross-multiplication involves multiplying the numerator of one fraction by the denominator of another fraction. In this case, we multiply 8 by 225 (which is the denominator of the second fraction) and also multiply 18 by "x" (which is the denominator of the first fraction).

So,

8 * 225 = 18 * x

To calculate this, multiply 8 and 225 to get 1,800, and multiply 18 and "x" to get 18x. The equation becomes:

1800 = 18x

Now, we can isolate "x" by dividing both sides of the equation by 18:

1800/18 = x

Simplifying, we get:

100 = x

Therefore, the value of "x" is 100 when 8/18 is equal to x/225.

Let me know if you have any further questions or need more explanation!