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anonymous

  • 5 years ago

for 4/7-1/2 can 7 and 2 go into 14

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  1. anonymous
    • 5 years ago
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    Yep 7 and 2 both share a common denominator of 14 good job so let's start with 4/7 what do you have to multiply 7 by to get 14

  2. anonymous
    • 5 years ago
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    2

  3. anonymous
    • 5 years ago
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    Good now multiply 7 by 2 to get the denominator and multiply the numerator which is 4 by 2 as well

  4. anonymous
    • 5 years ago
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    what does 4/7=?

  5. anonymous
    • 5 years ago
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    8/14

  6. anonymous
    • 5 years ago
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    Good job! Now lets work on the other fraction....

  7. anonymous
    • 5 years ago
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    1/2 what do you have to multiply 2 by to get 14?

  8. anonymous
    • 5 years ago
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    7

  9. anonymous
    • 5 years ago
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    2/14

  10. anonymous
    • 5 years ago
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    Yep so multiply 2 by 7 to get 14 as your denominator and do the same thing to the top of the fraction what does 1/2=?

  11. anonymous
    • 5 years ago
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    You still have to multiply 2*7 to finish correcting the fraction

  12. anonymous
    • 5 years ago
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    wat

  13. anonymous
    • 5 years ago
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    so 1/2=7/14

  14. anonymous
    • 5 years ago
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    SO when I say do the same thing to the top of the fraction I mean multiply the top number of the fraction by the same number you multiplied by on the bottom of the fraction

  15. anonymous
    • 5 years ago
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    ok the answer was 1 14

  16. anonymous
    • 5 years ago
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    Your problem should now look like this: 8/14-7/14 subtract now and yep you got the answer right good job

  17. anonymous
    • 5 years ago
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    u plz not say good job then i feel like a kindergatiner

  18. anonymous
    • 5 years ago
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    ha ha sorry my bad

  19. anonymous
    • 5 years ago
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    if the denominaters is 5 or 6 is th lcm 11

  20. anonymous
    • 5 years ago
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    I think it would be 30....

  21. anonymous
    • 5 years ago
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    how?

  22. anonymous
    • 5 years ago
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    cause lcm is The smallest (non-zero) number that is a multiple of two or more numbers.

  23. anonymous
    • 5 years ago
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    so 5*6=30 and there isn't any lower number that they both go into evenly other than 30

  24. anonymous
    • 5 years ago
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    i meant lcd

  25. anonymous
    • 5 years ago
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    oh ok lol no it would be 30 still for the same reason

  26. anonymous
    • 5 years ago
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    $!@#

  27. anonymous
    • 5 years ago
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    ha ha sorry

  28. anonymous
    • 5 years ago
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    ok so 30 then wat im confused on this one

  29. anonymous
    • 5 years ago
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    5*6=30 6*5=30 both 5 and 6 can't both go into anything that is lower than thirty

  30. anonymous
    • 5 years ago
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    oh ok the top numbers are 1/5 and 5/6

  31. anonymous
    • 5 years ago
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    Ok does the problem ask you to add or subtract them or what?

  32. anonymous
    • 5 years ago
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    1/5=6/30 5/6=25/30

  33. anonymous
    • 5 years ago
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    subtract

  34. anonymous
    • 5 years ago
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    no add

  35. anonymous
    • 5 years ago
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    ok so 6/30-25/30=-19/30

  36. anonymous
    • 5 years ago
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    ok so adding it would be 6/30+25/30=31/30 simplify 1(1/30)

  37. anonymous
    • 5 years ago
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    now if the denominaters were 5 and 2 couldnt the lcd be 10

  38. anonymous
    • 5 years ago
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    yes

  39. anonymous
    • 5 years ago
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    now if the denominaters were 5 and 2 couldnt the lcd be 10

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