Given,
1 cup = 9 ounces
We need to find the weight of 3 and 3/4th cups.
For that, we multiply the number of cups by "9" to get the number of ounces.
Let's set up the multiplication:
[tex]3\frac{3}{4}\times9[/tex]To do the multiplication, we first have to convert the mixed number to improper fraction. We follow the process below for conversion:
If we have a mixed number,
[tex]a\frac{b}{c}[/tex]The improper fraction is,
[tex]\frac{(a\times c)+b}{c}[/tex]Now, we show the multiplication process and find out the answer:
[tex]\begin{gathered} 3\frac{3}{4}\times9 \\ =\frac{(3\times4)+3}{4}\times9 \\ =\frac{12+3}{4}\times9 \\ =\frac{15}{4}\times9 \\ =\frac{135}{4} \end{gathered}[/tex]We would need 135/4 ounces of chocolate chips.