Final answer:
Lexie needs to take the fewest steps to walk her track - 14 steps. Josh needs to take 2 more steps, and Hannah needs to take 16 more steps to finish their races.
Step-by-step explanation:
Lexie needs to take the fewest steps to walk her track because her track is the shortest distance.
Her track measures 7 feet, whereas Josh's track measures 16 feet and Hannah's track measures 10 feet.
Since Lexie's shoe is 1/2 of a foot, she will only need to take 14 steps to complete her track. Josh's shoe is 1 foot long, so he will need to take 16 steps.
Hannah's shoe is 1/3 of a foot, so she will need to take 30 steps to finish her track.
Therefore, Lexie needs to take the fewest steps to walk her track.
The two others need to take the following number of steps to finish their races:
Josh: 16 - 14 = 2 steps
Hannah: 30 - 14 = 16 steps
So, Josh needs to take 2 more steps, and Hannah needs to take 16 more steps to finish their races.