Question

Kade makes 5/6 cup salad dressing. He uses 2/3 cup dressing on a salad. How much salad dressing is left

Answer 1

To solve $\frac{5}{6} - \frac{2}{3}$, we need to find a common denominator. If we multiply $\frac{2}{3}$ by $\frac{2}{2}$, we get $\frac{4}{6}$. The reason we can do this is because two over two is really just equivalent to 1, and multiplying a number times one equals the original number. So if you're subtracting  $\frac{4}{6}$ from $\frac{5}{6}$, you have


$\dfrac{5}{6} - \dfrac{4}{6} = \dfrac{5-4}{6} = \dfrac{1}{6} \ cups$.