1. moazzam07

2. moazzam07

3. DanJS

They want the units of miles per 1 hour, $\frac{ 2/7~ miles }{ 2/5~hour } = \frac{ ?~mile }{ 1~hour }$

4. DanJS

do you know how to divide fractions?

5. moazzam07

yes

6. moazzam07

5/7

7. DanJS

Recall.. $\frac{ \frac{ a }{ b } }{ \frac{ c }{ d } } = \frac{ a }{ b }*\frac{ d }{ c } = \frac{ a*d }{ b*c }$ flip the bottom fraction over, and multiply them

8. DanJS

$\frac{ 2/7 }{ 2/5 } = \frac{ 2 }{ 7 }*\frac{ 5 }{ 2 }$

9. DanJS

Then it looks like they just want to change into a mixed number

10. moazzam07

Ok so im going to do 2/7 times 5/2?

11. moazzam07

10/14 = 5/7

12. DanJS

right, then just reduce

13. DanJS

good

14. anonymous

@DanJS you didnt finish helping me out man

15. moazzam07

Wait so the answer is D OR C?

16. moazzam07

I got C

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