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Mathematics 10 Online
OpenStudy (moazzam07):

Please help medal and fan

OpenStudy (moazzam07):

OpenStudy (moazzam07):

Please help

OpenStudy (danjs):

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

OpenStudy (danjs):

do you know how to divide fractions?

OpenStudy (moazzam07):

yes

OpenStudy (moazzam07):

5/7

OpenStudy (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

OpenStudy (danjs):

\[\frac{ 2/7 }{ 2/5 } = \frac{ 2 }{ 7 }*\frac{ 5 }{ 2 }\]

OpenStudy (danjs):

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

OpenStudy (moazzam07):

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

OpenStudy (moazzam07):

10/14 = 5/7

OpenStudy (danjs):

right, then just reduce

OpenStudy (danjs):

good

OpenStudy (anonymous):

@DanJS you didnt finish helping me out man

OpenStudy (moazzam07):

Wait so the answer is D OR C?

OpenStudy (moazzam07):

I got C

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