## twitch Group Title need help!!! Medalss!!! one year ago one year ago

1. twitch Group Title

simplify -1/5 - 2/3

2. kugler97 Group Title

all you would do is get a caculator and type in -1/5 - 2/3 and you will get your answer..

3. twitch Group Title

alrite hang on tell me if you get the same thing

4. kugler97 Group Title

okkayy.. lol

5. twitch Group Title

-0.86666666666666666666666666666667

6. twitch Group Title

lol

7. twitch Group Title

did you get the same thing

8. kugler97 Group Title

yes i did.. lol

9. twitch Group Title

but I dont thinks thats right

10. kugler97 Group Title

It is -0.86 you take the rest of the numbers off.. lol

11. twitch Group Title

oh how would I put that in a fraction tho :)

12. kugler97 Group Title

you would take -0.86 and divide that by 100 and then tell me what you get ?!

13. twitch Group Title

0.0086

14. kugler97 Group Title

i just did it and i got 0.0086

15. twitch Group Title

so when does it become a fraction

16. kugler97 Group Title

then take that and put 86 over 100 and that's your answer (:

17. kugler97 Group Title

is it right?

18. twitch Group Title

umm idk because my cousin got $-\frac{ 13 }{ 15 }$

19. kugler97 Group Title

hmmmm... not sure then sorry

20. twitch Group Title

its okay thnx for trying

21. kugler97 Group Title

22. twitch Group Title

wbu tomo do you know how to do this problem

23. Twis7ed Group Title

Find the greatest common denominator and simplify

24. tomo Group Title

-1/5 - 2/3 multiply the first term by 3/3. you need a common denominator to add or subtract fractions. in this case the least common denominator is 15 (-1/5)*(3/3) = -3/15 multiply the second term by 5/5 (2/3)*(5/5) = 10/15 $\frac{-3}{15}-\frac{10}{15} = \frac{-3-10}{15} = \frac{-13}{15}$

25. twitch Group Title

alright hb $\frac{ 8k-12h }{ 4 }$

26. tomo Group Title

pull out a 4 out of the numerator.

27. twitch Group Title

-4kh

28. tomo Group Title

??

29. twitch Group Title

8-12 is - 4?

30. twitch Group Title

oh nvm its 2k-3h

31. tomo Group Title

good catch.

32. twitch Group Title

duuhh immma dork sometimes

33. tomo Group Title

now you have $\frac{4*(2k-3h)}{4} = \frac{4}{4}*(2k-3h) = ?$

34. twitch Group Title

1kh

35. tomo Group Title

k and h are not multiplied they are being subtracted so you have (4/4)(2k-3h) 1*(2k-3h) (2k-3h) you cannot simplify further 2k-3h does not equal 1kh suppose you have k = 2, h = 3 2k-3h = 2*2-3*3 = 4-9 = -5 1kh = 1*2*3 = 6 // clearly not -5

36. twitch Group Title

okay I have no idea how to solve this one "a bowl contains 4 red chips, 3 blue chips, and 9 green chips. your choose one a random" Find P (not red) now how would I solve this?

37. tomo Group Title

P(not x) = 1-P(x)

38. twitch Group Title

wait how did you figure that

39. tomo Group Title

you have a total probability of 1. therefore the P(x) is something then the probability of not x is 1 minus the probability of that something.