Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

headge

  • 2 years ago

When you get a fraction like this: 20y/40 - 57y/40, can I swap it to 57y/40 - 20y/40?

  • This Question is Closed
  1. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @kathyforver

  2. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @kathyforever

  3. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes no, maybe, I don't know

  4. kathyforever
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im not completely sure. i think so but i may be wrong

  5. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Hero

  6. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @TuringTest

  7. Agent47
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    One does not simply swap the fractions whenever he or she feels like it!

  8. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    AAAAAAAAAAAAARRRRRRRRRRRR

  9. Agent47
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    you could swap it to: -57y/50+20y/40 though

  10. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    What is 20y/40 - 57y/40?

  11. Agent47
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    addition is commutative, but subtraction is not.

  12. cshalvey
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    @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.

  13. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Why is the 57y now over 50?

  14. MarkRijckenberg
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    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 20-57 is definitely not the same value as 57-20

  15. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Be arsed douing that!

  16. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    doing

  17. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Mark you look like billy corgan. So I will write the question out in full

  18. cshalvey
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    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?

  19. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    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?

  20. cshalvey
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    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 = ?

  21. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Write is as a single fraction

  22. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    And I've not been rude to Mark

  23. cshalvey
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    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)

  24. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So it could be 37y/40?

  25. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -

  26. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -37y/40?

  27. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    There she goes, there she goes again. She calls my name!

  28. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    D:

  29. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @MarkRijckenberg

  30. cshalvey
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Hehe, sorry, connection issues. But yes, you got it! It's -37y/40 :)

  31. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I didn't know you were able to get a -y thing!

  32. headge
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Alright I'll give you best response

  33. MarkRijckenberg
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I disagree: Y/2 - 5y/8 + 4y/5 = 20y/40 - 25y/40 + 32y/40 = -5y/40 + 32y/40 = 27y/40

  34. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.