Question

What fraction part remains uncovered if 3 rectangles are covered

use the image below to help you visualize the problem.
I shaded in 3 rectangles and there are 25 rectangles in all. pls help thanks

Answer 1

At the beginning, you begin with one whole that's been split into 25 pieces, or 25ths. Before you cover any of them up, you still have all 25, so you have 25 25ths, or, as a fraction,
`(25)/(25)`. Next, you take away 3 of those 25ths, or
`(3)/(25)`, which leaves you with
`(25-3)/(25)`, or
`(22)/(25)`.