Question

What is the product of
9/20 - 1/4

Answer 1

`(1)/(5)`

Explanation:

`(9)/(20) - (1)/(4)`

Make sure they have a common denominator. To do so, you must find a number the both have in come. Here, the number they have in common is 20.

What times 4 equals 20? 5. Whatever you do to the denominator you must do to the numerator.

`(5)/(5)` ×
`(1)/(4)` =
`(5)/(20)`

Now you have
`(9)/(20) - (5)/(20)` =
`(4)/(20)`

Then you can simplify
`(4)/(20)` to
`(1)/(5)` by dividing it by
`(4)/(4)`