The figures are similar. find x. 9/15 4/x

9/15=4/x  

One solution was found :

                  x = 20/3 = 6.667

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :  

                    9/15-(4/x)=0  

Step by step solution :

Step  1  :

           4

Simplify   —

           x

Equation at the end of step  1  :

  9    4

 —— -  —  = 0  

 15    x

Step  2  :

           3

Simplify   —

           5

Equation at the end of step  2  :

 3    4

 — -  —  = 0  

 5    x

Step  3  :

Calculating the Least Common Multiple :

3.1    Find the Least Common Multiple

but which class are u may know that first