The ratio of flour and raisin in cookie recipe is,
[tex]\begin{gathered} \frac{f}{r}=\frac{\frac{3}{5}}{\frac{1}{4}} \\ =\frac{3}{5}\cdot\frac{4}{1} \\ =\frac{12}{5} \end{gathered}[/tex]Determine the cups of raisins required for 3 cups of floor.
[tex]\begin{gathered} \frac{3}{r}=\frac{12}{5} \\ r=\frac{3\cdot5}{12} \\ =\frac{5}{4} \\ =1\frac{1}{4} \end{gathered}[/tex]Thus, cups of raisins required is 1 1/4.
