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## LonelyandForgotten 2 years ago Simplify:

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1. LonelyandForgotten

|dw:1364852403030:dw|

2. hartnn

when denominator is common you can combine the numerator, \(\huge \dfrac{a}{b}+\dfrac{c}{b}=\dfrac{a+c}{b}\)

3. LonelyandForgotten

oh. But why is there a minus sign there. do i have to subtract?

4. hartnn

yes, whatever is in numerator, just copy it. |dw:1364852759481:dw| got that ^ ?

5. LonelyandForgotten

what? :/

6. LonelyandForgotten

do i have to subtract?

7. hartnn

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.

8. sw050399

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|

9. LonelyandForgotten

it was 16 not 15

10. hartnn

oh, yes, just replace 15 by 16

11. hartnn

-(16+22)

12. LonelyandForgotten

alrighty, thanks! :D that helps a lot

13. hartnn

welcome ^_^

14. LonelyandForgotten

:D

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