Simplify by removing the factor of 1

5y -20 / 5y

5 y - 20 / 5 y =

5 y - 4 * 5 / 5 y =

5 y - 4 / y =

( 5 y * y - 4 ) / y =

( 5 y ^ 2 - 4 ) / y

I assume you mean

(5y-20)/(5y)
then
= 5(y-4)/(5y)

= (y-4)/y

To simplify the expression by removing the factor of 1, we need to find any common factors between the numerator (5y - 20) and the denominator (5y).

Starting with the numerator (5y - 20), we can factor out the greatest common factor (GCF) of 5:
5y - 20
= 5(y - 4)

Now let's simplify the denominator by factoring out the GCF as well:
5y
= 5 * y

So the simplified expression becomes:
(5(y - 4)) / (5 * y)

Next, we can cancel out the common factor of 5 in the numerator and denominator:
(1(y - 4)) / (1 * y)

Removing the factor of 1, we get:
(y - 4) / y

Therefore, the simplified expression with the factor of 1 removed is (y - 4) / y.