Mark wants to eat one last cookie from the cookie jar. In the jar there are 5 chocolate chip cookies, 6 peanut butter cookies, and 9 oatmeal cookies. He will randomly select one cookie from the jar. What is the probability that Mark will NOT pick a peanut butter cookie? (Enter fraction as a/b)

because there are 9 oatmeal cookies and only 6 peanut butter cookies so he would most likely get a oatmeal cookie

Step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b