Well Basically, it's kinda a struggle to understand this math your explaining: (

Well, 3/6 = 8/?

Remember, you can do anything to an equation as long as you do it to both sides

3/6=8/?

multiply both sides by?

3?/6=8

mulitly both sides by 6

3? = (6) (8)

3?=48

divide both sides by 3

?=16

16 goes in the quation mark place

16 will go where the question mark is located

So 3/6 = 8/16

Think of it like this: if you had three slices of pizza out of 6 total, then you had half the pizza. The same goes for if you had 8 slices out of 16 total

You can use the cross multiplication rule to find x

3/6 = 8/x

3*x = 6*8

3x = 48

3x/3 = 48/3

x = 16