Whats 1/5 - 1/7 can you tell me how to work it out

Convert the fractions so they both have the same denominator (bottom part of the fraction)

1/5 = 7/35

This is because 5*7=35, so 1*7=7

1/7 = 5/35

This is because 7*5=35, so 1*5 =5

Then subtract the top numbers to get the

First you have to make your denominators the same. You have 5 and 7 as your denominators. 5 x 7 = 35 So we can use 35 as the common denominator. So you have

1/5 = 7/35

1/7 = 5/35     now you can subtract

         2/35

Hope that I was able to help you. :-)

The best and most correct answer among the choices provided by your question is the first choice or letter A which is "45<s<65."

Let x = speed (in mph) 

45 <= x <= 65 for a car 
45 <= x <= 55 for a tractor 

I hope my answer has come to your help. Thank you for posting your question here in