Question

A baker at rods bakery misread the directions and used 53/4 cups of flour in a recipe. It was 13/4 times to much flour. How much flour should the baker have used

Answer 1

If the baker used
`(53)/(4)` and it was
`(13)/(4)` too much, then we must perform the following math calculation:

`(53)/(4) / (13)/(4)`

This will find the actual amount that the baker needed to use. To do this calculation we can use the Keep Change Switch rule.

Keep
`(53)/(4)`, change the division to multiplication, and then switch the numerator with the denominator on the second fraction to get
`(4)/(13).` This gives us:

`(53)/(4) * (4)/(13)`

Now multiply the numerators and put that over the product of the denominators.

`(53*4)/(4*13) = (212)/(52) = (53)/(13)`

Make sure you reduce your fractions, always good to do that!

The baker should have used
`(53)/(13)` cups of flour.