What are the challenges you have experienced regarding the use of fractions? Explain your answers.

none

I found the proof of:

pi = 3 + 1/[6 + 3^2/[6+5^2/[6+7^2/[6+9^2/[6+11^2/[6+13^2/[6+.......]]]]]]]

challenging

5yd=how many feet

There are three feet in each yard. So, three times...

What the...

It seems like there was a mistake in my previous response. I apologize for the confusion.

To convert yards to feet, you need to know that there are three feet in one yard. So, to find the number of feet in 5 yards, you would multiply 5 by 3.

5 yards * 3 feet/yard = 15 feet

Therefore, there are 15 feet in 5 yards.