Question

Make sure to SHOW WORK

Answer 1

9/4=2.25
2.25-1= 1.25

Answer 2

9/4 - 1 
make 1 into a fraction 
9/4 - 1/1
then make them have common denominator
9/4 - 1/1 multiply 1/1 by 4/4 (which simplified will be one so you're not messing it up)
9/4 - 4/4 now subtract the 4/4 out of 9/4
(you don't subtract the denominators)
so 9 - 4 is 5
9/4 - 4/4 = 5/4

Hope this helps:)