Question

1. A cup of chocolate chips weighs 9 ounces. A recipe calls for 3 3/4 cups of chocolate chips. a. How many ounces of chocolate chips are needed?

Answer 1

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:

`3(3)/(4)*9`

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,

`a(b)/(c)`

The improper fraction is,

`((a* c)+b)/(c)`

Now, we show the multiplication process and find out the answer:

`\begin{gathered} 3(3)/(4)*9 \\ =((3*4)+3)/(4)*9 \\ =(12+3)/(4)*9 \\ =(15)/(4)*9 \\ =(135)/(4) \end{gathered}`

We would need 135/4 ounces of chocolate chips.