Ask your own question, for FREE!
Mathematics 22 Online
OpenStudy (mindblast3r):

help

OpenStudy (anonymous):

ok what do u need help with

OpenStudy (mindblast3r):

\[\frac{ xy }{ xy(y-x) }=\frac{ 1 }{ y-x }\]

OpenStudy (mindblast3r):

how are these equivalent?

OpenStudy (anonymous):

um i hate to say this but this is totally new to me so sorry

OpenStudy (mindblast3r):

its okay.

OpenStudy (mindblast3r):

@campbell_st

OpenStudy (mindblast3r):

@mathstudent55 @Luigi0210

OpenStudy (campbell_st):

look at \[\frac{xy}{xy(y - x)}\] do you see a common factor. That is a term that is in the numerator and denominator...?

OpenStudy (campbell_st):

I'll write it this way \[\frac{xy \times 1}{xy \times (y - x)}\]

OpenStudy (mindblast3r):

top xy cancels out with the bottom xy

OpenStudy (mindblast3r):

so i guess the top is just left with a 1?

OpenStudy (mindblast3r):

is that how it works?

OpenStudy (campbell_st):

yes, that's it.

OpenStudy (mindblast3r):

i didn't understand how the 1 was there.

OpenStudy (campbell_st):

well remember 1 is a factor of any number or term 1 x 15 = 15 1 x y = y 1 x abc = abc

OpenStudy (mindblast3r):

well i still don't understand. i mean i understand everything what you have told me. but like 1 * xy = xy not 1

OpenStudy (mindblast3r):

you get what i'm saying?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!