Basics Mathematics

Question

Eeach lap Jeffery runs is 1/10 of a mile. He wants to run 3/5 of a mile.

Answer 1

Hi, Ralph.

So you need to find out how many laps are in 3/5 of a mile.

To do this, you can convert 3/5 to tenths and see how many 1/10's are in 3/5.

3/5 = x/10

Now cross multiply:

30 = 5x

30/5 = 6 = x

So 3/5 = 6/10

Therefore 3/5 of a mile is equal to 6/10 or 6 tenths of a mile...So he needs to run 6 laps.

Answer 2

In order to determine how many laps Jeffrey has to run, you need to convert the fractions so they have the same denominator. Since 5 is a factor of 10, you only have to change 3/5. 5 x 2 = 10, so you have to multiply the top and bottom number of the fraction 3/5 by 2, so your equation would be 3/5 x 2/2. 3 x 2 = 6 and 5 x 2 = 10, so 3/5 x 2/2 = 6/10. Therefore, 3/5 = 6/10. Therefore, if Jeffrey wants to run that much, and each lap is 1/10 of a mile, he'll have to run 6 laps (1/10 x 6 = 6/10).