When you get a fraction like this: 20y/40  57y/40, can I swap it to 57y/40  20y/40?
 anonymous
When you get a fraction like this: 20y/40  57y/40, can I swap it to 57y/40  20y/40?
 Stacey Warren  Expert brainly.com
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 jamiebookeater
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 anonymous
@kathyforver
 anonymous
@kathyforever
 anonymous
Yes no, maybe, I don't know
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 anonymous
im not completely sure. i think so but i may be wrong
 anonymous
@Hero
 anonymous
@TuringTest
 Agent47
One does not simply swap the fractions whenever he or she feels like it!
 anonymous
AAAAAAAAAAAAARRRRRRRRRRRR
 Agent47
you could swap it to:
57y/50+20y/40 though
 anonymous
What is 20y/40  57y/40?
 Agent47
addition is commutative, but subtraction is not.
 anonymous
@headge  Do you understand negative numbers? So, in this example it's okay for the answer to be less than zero, or rewrite it as @Agent47 has done.
 anonymous
Why is the 57y now over 50?
 MarkRijckenberg
To answer your question, you need to simplify the issue. You need to put y/40 outside the brackets and the remaining numbers inside the brackets. Then you will see that 2057 is definitely not the same value as 5720
 anonymous
Be arsed douing that!
 anonymous
doing
 anonymous
Mark you look like billy corgan. So I will write the question out in full
 anonymous
Now *that's* an excellent example there @MarkRijckenberg
@headge  I'd be careful about how I interact with the people who are helping you, ok? Now, what part of this problem don't you understand? Did Mark's example help?
 anonymous
Y/2  5y/8 + 4y/5 = 20y/40  25y/40 + 32y/40 = 20y/40  57y/40 Then I got stuck. What do you mean? What have I said that is rude?
 anonymous
Hmm, so now I'm confused. Are you supposed to solve for y in this problem?
In terms of your original question, are you able to do that part? 20  57 = ?
 anonymous
Write is as a single fraction
 anonymous
And I've not been rude to Mark
 anonymous
Ok, understood.
So, are you able to subtract 20y from 57y? An easier way to think of it is by adding a negative, as @Agent47 did.
So, 57 + 20 = ? (this answer will be a negative number FYI)
 anonymous
So it could be 37y/40?
 anonymous

 anonymous
37y/40?
 anonymous
There she goes, there she goes again. She calls my name!
 anonymous
D:
 anonymous
@MarkRijckenberg
 anonymous
Hehe, sorry, connection issues.
But yes, you got it! It's 37y/40 :)
 anonymous
I didn't know you were able to get a y thing!
 anonymous
Alright I'll give you best response
 MarkRijckenberg
I disagree: Y/2  5y/8 + 4y/5 = 20y/40  25y/40 + 32y/40 = 5y/40 + 32y/40 = 27y/40
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