To solve [tex] \frac{5}{6} - \frac{2}{3} [/tex], we need to find a common denominator. If we multiply [tex] \frac{2}{3} [/tex] by [tex] \frac{2}{2} [/tex], we get [tex] \frac{4}{6} [/tex]. 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 [tex] \frac{4}{6} [/tex] from [tex] \frac{5}{6} [/tex], you have
[tex] \dfrac{5}{6} - \dfrac{4}{6} = \dfrac{5-4}{6} = \dfrac{1}{6} \ cups[/tex].
