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Mathematics 23 Online
OpenStudy (alurahenderson):

what is -4/5 + 7/15

OpenStudy (anonymous):

-0.33333333333

OpenStudy (anonymous):

nooo what are you doing. 1. Dont give the answer straight away. alura still does not know how to solve this 2. This should be done without a calculator 3. answers are best expressed as fractions

OpenStudy (anonymous):

first, you need to make the denominators equal. Do you know how to do that?

OpenStudy (alurahenderson):

yes, thank you for helping it would end up being -12/15 and 7/15?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

now add the numerators and put it over 15

OpenStudy (alurahenderson):

-19/15 which would end up as -1 (4/15) ?

OpenStudy (anonymous):

yes

OpenStudy (alurahenderson):

Thanks! I get confused with negative numbers

OpenStudy (alurahenderson):

That isn't on the answer list...

OpenStudy (anonymous):

hmm

OpenStudy (anonymous):

wait

OpenStudy (anonymous):

I did not bother to check your answer lol

OpenStudy (anonymous):

sorry

OpenStudy (anonymous):

-12 + 7 = -5

OpenStudy (anonymous):

the answer is -1/3

OpenStudy (alurahenderson):

oh okay, its cause of the negative right?

OpenStudy (anonymous):

yes

OpenStudy (alurahenderson):

thank you!

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