Question

if I have 1 1/2 cups of spaghetti and 3/4 tsp of oregano to complete the dish, how much oregano do I need if only 1/2 cup spaghetti?

Answer 1

1 1/2 cups of spaghetti require 3/4 tsp of oregano to complete the dish.

How much oregano will be required for only 1/2 cup spaghetti?

We can set up the following proportion

$\frac{1\frac{1}{2}}{\frac{3}{4}}=\frac{\frac{1}{2}}{x}$

Let us solve for x that is the tsp of oregano required.

$\begin{gathered} \frac{1\frac{1}{2}}{\frac{3}{4}}=\frac{\frac{1}{2}}{x} \\ \frac{\frac{3}{2}}{\frac{3}{4}}=\frac{\frac{1}{2}}{x} \\ \frac{3}{2}\cdot x=\frac{1}{2}\cdot\frac{3}{4} \\ \frac{3}{2}\cdot x=\frac{3}{8} \\ x=\frac{3}{8}\cdot\frac{2}{3} \\ x=\frac{2}{8} \\ x=\frac{1}{4} \end{gathered}$

Therefore, you will need 1/4 tsp of oregano.