Answer:
Are you supposed to change decimals to fractions and fractions to decimals?
If yes,
0.5 = 1/2
11/4 = 2.75
0.25 = 1/4
3/8 = 0.375
I am going to assume that you are looking for the speed of the object. So, knowing that the formula for speed is distance divided by time, we have the expression: 45.5/13. This would simplify to be 3.5 meters per second, or m/s. m/s also happens to be the "Scientific unit for speed!" Just a fun fact! If this answer was not clear, please feel free to ask! Happy home-working!