Question

A racecar driver has completed 12 1/2 laps of a 50 lap race. What fractional part of the race remains

Answer 1

Since there are 50- 12.5=17.5 laps left, the fraction of the race remaining is 37.5/50=375/500=15/20=3/4

Answer 2

A fraction is a way to describe a part of a whole. The remaining laps are 37 1/2 laps.

What is a Fraction?

A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.

Given the race has 50 laps, and the driver has completed 12 1/2 rounds. Therefore, the remaining laps are,

$\text{Remaining laps} = 50 \rm\ laps - 12\frac12\ laps$

                       $= 50 - \dfrac{(12 \times 2)+1}{2}\\\\=\dfrac{50}{1} -\dfrac{25}{2}\\\\= \dfrac{50 \times 2}{1 \times 2} - \dfrac{25}{2}\\\\=\dfrac{100-25}{2}\\\\= \dfrac{75}{2}\\\\=37\frac12$

Hence, the remaining laps are 37 1/2 laps.

Learn more about Fraction:

https://brainly.com/question/1301963

#SPJ2