Question

x= 12A recipe calls for 1 teaspoons of cinnamon to make 2 dozenoatmeal cookies. How many teaspoons of cinnamon are needed tomake 60 oatmeal cookies?

Answer 1

2 dozen = 2 * 12 = 24

So,

1 teaspoon cinnamon = 24 oatmeal cookies

What amount (in fraction) of cinnamom is need to make 1 cookie??

That will be:

$\frac{1}{24}$

So, each cookie requires 1/24th teaspoon of cinnamon.

To find amount of teaspoon needed to make 60 cookies, we mutliply this rate. So, we have:

$\begin{gathered} 60\times\frac{1}{24}=\frac{60}{24}=\frac{5}{2} \\ \end{gathered}$

Changed to mixed number, for better understanding, we would need:

$\frac{5}{2}=2\frac{1}{2}\text{ teaspoon of cinnamon}$