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#1 2012-03-10 06:22:27

lovey55
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which fraction is smaller, -2/7 or -1/3? ty

]i have a cpl of these that will be on a test. and would appreciate it  if  someone can show me a really quick and easy way to  solving this? also, how to solve this equation?y=2/3=5/12 and x+1/9=7/9? also, 2/3x=7=tyup

 

#2 2012-03-10 06:28:01

bobbym
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Re: which fraction is smaller, -2/7 or -1/3? ty

Hi;

This is not in the right form.

y=2/3=5/12


For the next one:



Subtract 1 / 9 from both sides.






For the last

2/3x=7=ty

which variable do you want to solve for?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#3 2012-03-10 09:02:09

lovey55
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Re: which fraction is smaller, -2/7 or -1/3? ty

this is the  problem as written on sample test ---Y-2/3=5/12==solve equation and simplify! THE NEXT ONE  IS 2/3x=7  and another x+1/9= -7/9--- i am copying  all these problems from a sample math test---and that is how they  are written! "-D

 

#4 2012-03-10 09:10:16

bobbym
Administrator

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Re: which fraction is smaller, -2/7 or -1/3? ty

Hi;

You should notice that in post#1 you have written

y=2/3=5/12

and in post #3 you have

Y-2/3=5/12

these are not the same, that is why I asked.

This one is in a form we can solve for




Add 2 / 3 to both sides.





Do you follow this so far? Are you familiar with how to add to fractions? Or do you need some help with that?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

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