Question

What is 9 1/10 - 4 3/4

Answer 1

`(87)/(20)`

Explanation:

First we need to change the mixed numbers into improper fractions.

9 x 10 = 90 + 1 = 91/10

4 x 4 = 16 + 3 = 19/4

Now we need to get them into simplest terms. There is a few ways to do this, but I know that 10 x 2 = 20 and 4 x 5 = 20 so I will use 20.

`(91)/(10) = (91 x 2)/(10 x 2) = (182)/(20)`

`(19)/(4) = (19 x 5)/(4 x 5) = (95)/(20)`

Now we can subtract:

`(182)/(20) - (95)/(20) = (87)/(20)`

And that leaves us with our answer :D