How do you put these fractions on a number line?
look at picture if you need to see.

3/7 would go either on the 4th dash or if you could put it in between the 4th and 5th dashes, closer to the 4, then do that, if not do the 4th dash

7/10 would go on the 7th dash because there are 10 total dashes, this is the 7th

9/7 is equal to 1 1/7 and would be placed past the 1

9/10 would go on the 9th dash because it is the 9th dash out of 10

5/10 would go halfway(5th dash) because 5 is half of 10

The answer is 109 times per second