The recipe calls for 5/8 of a cup of butter
That means 1 recipe needs 5/8 cup of butter
If the recipe is double means
2 recipes need how many cups of butter
By using the ratio method
Recipe: butter
1 : 5/8
2 : x
By using cross multiplication
[tex]\begin{gathered} 1\times x=2\times\frac{5}{8} \\ x=\frac{10}{8} \end{gathered}[/tex]x is the number of cups of butter
We will change it to a mixed number
[tex]\frac{10}{8}=1\frac{2}{8}=1\frac{1}{4}[/tex]Double the recipe needs 1 1/4 cups of butter
Bjorn needs 1 1/4 cups of butter (5/4 cups of butter)
