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LonelyandForgotten

Simplify:

  • one year ago
  • one year ago

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  1. LonelyandForgotten
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    |dw:1364852403030:dw|

    • one year ago
  2. hartnn
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    when denominator is common you can combine the numerator, \(\huge \dfrac{a}{b}+\dfrac{c}{b}=\dfrac{a+c}{b}\)

    • one year ago
  3. LonelyandForgotten
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    oh. But why is there a minus sign there. do i have to subtract?

    • one year ago
  4. hartnn
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    yes, whatever is in numerator, just copy it. |dw:1364852759481:dw| got that ^ ?

    • one year ago
  5. LonelyandForgotten
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    what? :/

    • one year ago
  6. LonelyandForgotten
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    do i have to subtract?

    • one year ago
  7. hartnn
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    there was -15 in 1st numerator and -22 in 2nd so, i wrote -15-22 now to evaluate that, you can factor out - *minus* so, -15-22 = - (15+22) you had to add actually.

    • one year ago
  8. sw050399
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    It's like if you have: |dw:1364852815238:dw| Because the denominators are the same, you can just rewrite it as one fraction: |dw:1364852863132:dw|

    • one year ago
  9. LonelyandForgotten
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    it was 16 not 15

    • one year ago
  10. hartnn
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    oh, yes, just replace 15 by 16

    • one year ago
  11. hartnn
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    -(16+22)

    • one year ago
  12. LonelyandForgotten
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    alrighty, thanks! :D that helps a lot

    • one year ago
  13. hartnn
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    welcome ^_^

    • one year ago
  14. LonelyandForgotten
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    :D

    • one year ago
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