Explain how to compare two lengths that are measured in different-sized units

Let me think

Okay! 

To compare two lengths that are measured in different sizes, you need to find out how many of one measurement goes into another. 

Say if you have a scale factor of 6ft = 4yd. That doesn't mean that really does. You need to find out the inches or how many feet are in 4yds. 

AS SHOWN:

6ft = 72in

4yd = 12ft 12ft + 144in. 

But if you want to keep it simple, 6ft = 12ft because 4yd equals 12ft.

If this helps please say so if notthen to bad.