Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

bonjovifan03 Group Title

OK need more help What is 3/8 +5/7? is it 8/15.

  • one year ago
  • one year ago

  • This Question is Closed
  1. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Ty M

    • one year ago
  2. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    That is not correct.

    • one year ago
  3. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    both denominators must be the same.

    • one year ago
  4. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    when we add and subtract they must be the same, multiplying you do not.

    • one year ago
  5. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    you must find the lowest common multiple ( LCM of 8 and 7

    • one year ago
  6. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so would it be 1/7?

    • one year ago
  7. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    you can only add the top numbers when the denominator is the same

    • one year ago
  8. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    nope that isn't correct.

    • one year ago
  9. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    LCM = 7*8 = 56

    • one year ago
  10. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Lets find the LCD(Least Common Denominator) HINT: If we cannot find a number lower, we usually multiply the bottom numbers, so in this case 7*8 =?

    • one year ago
  11. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    cwrw trying to steal my Q!

    • one year ago
  12. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    now you need to convert 3/8 to something over 56

    • one year ago
  13. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so 61/56 ? Im lost

    • one year ago
  14. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    correct.

    • one year ago
  15. cwrw238 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ok - sorry - you carry on

    • one year ago
  16. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    :p

    • one year ago
  17. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ty all

    • one year ago
  18. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you undertstand how you got that answer though?

    • one year ago
  19. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes and no? 56yes but no to sure on the 61

    • one year ago
  20. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    So if you divide 25/6 by 5 is it 5/6?

    • one year ago
  21. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ty

    • one year ago
  22. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    well actually I wouldn't say that.

    • one year ago
  23. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    normally the trick when you have multiple denoms you do this. A/B/C = A *C/B

    • one year ago
  24. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Sorry I said yes, when I was checking my answer it seemed to give me that, and the other one I thought.

    • one year ago
  25. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    So 25 / 6 / 5 would be 25 * 5/6

    • one year ago
  26. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so would it be 25/30?

    • one year ago
  27. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    What is 25*5

    • one year ago
  28. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    125

    • one year ago
  29. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    /6

    • one year ago
  30. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so 125/6?

    • one year ago
  31. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yes.

    • one year ago
  32. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    http://www.wolframalpha.com/input/?i=%2825%29%2F%286%2F5%29 Depending how you put it into Wolfram you could get 5/6, though I'm not 100% sure why..

    • one year ago
  33. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @jim_thompson5910

    • one year ago
  34. bonjovifan03 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    OK ty

    • one year ago
  35. jim_thompson5910 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    3/8 + 5/7 (7/7)*(3/8) +5/7 21/56 +5/7 21/56 + (5/7)*(8/8) 21/56 + 40/56 (21+40)/56 61/56 So 3/8 + 5/7 = 61/56

    • one year ago
  36. KonradZuse Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    haha not that part :P. 25/6/5 :)

    • one year ago
    • Attachments:

See more questions >>>

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.