because [tex] \frac{5}{6} [/tex] can be turned into [tex] \frac{25}{30} [/tex]
[tex] \frac{1}{5} } [/tex] can be [tex] \frac{6}{30} [/tex]
[tex]\frac{6}{30} } [/tex] multiply evenly into [tex]\frac{25}{30} } [/tex] 4 times
So your answer is 4 [tex] \frac{1}{5} [/tex] cups
