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anonymous

  • one year ago

Combine like terms to simplify the expression.

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  1. anonymous
    • one year ago
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    \[\frac{ 7 }{ 8 }m+\frac{ 9 }{ 10 }-2m-\frac{ 3 }{ 5 }\]

  2. anonymous
    • one year ago
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    umm well take it one step at a time \[\frac{ 9 }{ 10 } - \frac{ 3 }{ 5 }\]

  3. anonymous
    • one year ago
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    @Hero @ganeshie8

  4. anonymous
    • one year ago
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    @pooja195

  5. welshfella
    • one year ago
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    bring all like terms together you have 2 types here - terms in m and numbers so we have (7/8) m - 2m + 9 /10 - 3/5

  6. welshfella
    • one year ago
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    to work out the terms in m first calculate 7/8 - 2 which by making everything in denominator 8 is 7/8 - 16/8 = -9/8 so the first 2 terms work out to (-9/8) m or -9 m -- 8

  7. welshfella
    • one year ago
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    I have trouble with the equation editor and Latex thats why i dont use them

  8. welshfella
    • one year ago
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    now you can work out + 9/10 - 3/5 by converting the 3/4 to something / 10 - can you do that?

  9. welshfella
    • one year ago
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    * converting the 3/5

  10. welshfella
    • one year ago
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    to convert 3/5 to 10th's multiply the top of the fraction and the bottom by 2

  11. welshfella
    • one year ago
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    |dw:1439473256670:dw|

  12. anonymous
    • one year ago
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    im still lost

  13. anonymous
    • one year ago
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    @welshfella

  14. anonymous
    • one year ago
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    @ganeshie8 @taramgrant0543664 @They_Call_Me_Narii

  15. taramgrant0543664
    • one year ago
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    So I'm just going to start over, First thing to do is create a common denominator between 9/10 and -3/5 To do this we want to get the lowest number on the bottom we can, 10 can not get lower so 5 has to go up To make 10, 5 needs to get multiplied by 2 and whatever we do to the bottom we must do to the top (3x2)/(5x2) =?/?

  16. anonymous
    • one year ago
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    if i am correct it would be 15/2 or 15/4 right

  17. taramgrant0543664
    • one year ago
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    (3x2)/(5x2) =?/? For this? Or are you talking for the 9/10-3/5?

  18. anonymous
    • one year ago
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    (3x2)/(5x2)=?/?

  19. taramgrant0543664
    • one year ago
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    3x2=6 5x2= 10 Therefore the fraction is 6/10

  20. anonymous
    • one year ago
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    oh ok

  21. taramgrant0543664
    • one year ago
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    So now that we have created a common denominator we can then do (9/10)-(6/10)=? Which is the same as saying (9-6)/10=?

  22. anonymous
    • one year ago
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    so the complete answer would be 3/10

  23. taramgrant0543664
    • one year ago
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    For that part yes but now we need to look at the ones that have the variable m

  24. anonymous
    • one year ago
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    ok

  25. taramgrant0543664
    • one year ago
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    So we have (7/8)m and -2m Let's just ignore the ms for now so that we can get the common denominator So 7/8 and 2 (this can also be 2/1) To get the bottom numbers to be the same the lowest common denominator is 8 So (2x8)/(1x8)=?

  26. anonymous
    • one year ago
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    i gtg ill message u at 1 to continue with this

  27. taramgrant0543664
    • one year ago
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    I'll be at work so I won't be on just so you know

  28. taramgrant0543664
    • one year ago
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    But all you have to do is this (2x8)/(1x8)=? (7/8)-(16/8)= ?/? Since we ignored the m we have to put it back in and there will be the m So your answer will look like ?m/? Now you take the number with the variable m and add 3/10 as we had found that before So it'll be ?m/? + 3/10

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