Answer:
4.5 or 4 and a half
Step-by-step explanation:
9/10 divided by 2/10
put 2/10 into it's reciprocal and multiply it by 9/10
10/2 * 9/10
10 9
_ * _
2 10
^ (visualization)
multiple into 90/20, divide numerator and denominator by 10 to get 9/2
9/2 is 4.5
