Edna baked cookies. She ate 1/5 of the cookies and gave 1/3 of the cookies to Patty. What fraction of Edna's cookies are left?

I don't get what you are trying to say

To determine what fraction of Edna's cookies are left, we need to subtract the fraction she ate and the fraction she gave to Patty from the total.

Let's start by representing the number of cookies Edna had as a whole number. Let's say she had 20 cookies, for example.

1/5 of the cookies Edna ate would be (1/5) * 20 = 4 cookies.

1/3 of the cookies Edna gave to Patty would be (1/3) * 20 = 6 cookies.

Now, let's subtract the number of cookies Edna ate and gave to Patty from the total number of cookies she had to find out what fraction of cookies are left.

Total number of cookies - Cookies Edna ate - Cookies Edna gave to Patty

20 - 4 - 6 = 10

So, Edna has 10 cookies left out of the original 20 cookies.

To express this as a fraction, we can write it as 10/20.

However, to simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 10 in this case.

Doing this simplification, we get:

10/20 = (10 ÷ 10) / (20 ÷ 10) = 1/2

Therefore, the fraction of Edna's cookies that are left is 1/2.

1/5 = 3/15

1/3 = 5/15

(15/15) - (3/15) - (5/15) = ?