Indigo drinks 5 ounces glasses per hour.
A fraction is used to represent the portion/part of the whole thing. It represents the equal parts of the whole.
As in [tex]\frac{4}{5}[/tex] hour she drinks =10*[tex]\frac{2}{5}[/tex]
= [tex]\frac{20}{5}[/tex]
=4 ounce
She is drinking 4 ounce in [tex]\frac{4}{5}[/tex] hours,
= [tex]\frac{4}{\frac{4}{5} }[/tex]
= [tex]4*\frac{5}{4}[/tex]
=5 ounce in an hour.
She drink 5 ounces glasses per hour.
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