Why is the slowest elementary step "the rate determining step"?

Answer 1

Suppose we (you and I) are making hamburgers. You're cooking the meat and I'm toasting the buns. I can toast buns at the rate of 1 whole buns/min. You can cook a pattie in 10 minutes. What determines the number of hamburgers we can make in an hour. You of course. You can cook 6 patties in an hour while I can toast 60 whole buns in an hour. How many hamburgers can we make in an hour? Certainly not 60. More like 6 because that's as fast you can cook the meat.

Answer 2

Oh, I understand now!! Thank you so much :)