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Mathematics 9 Online
OpenStudy (anonymous):

Name the set(s) of numbers to which -1/2 belongs. A: whole numbers, integers, rational numbers B: whole numbers, natural numbers, integers C: integers, rational numbers D: rational numbers

OpenStudy (anonymous):

hey. so what can you also represent -1/2 as?

OpenStudy (anonymous):

do you know what each of these things are?

OpenStudy (anonymous):

yea...

OpenStudy (anonymous):

You can represent it also as a integer.

OpenStudy (anonymous):

nope. Integers are positive and negative WHOLE numbers.

OpenStudy (anonymous):

integers are not fractions

OpenStudy (anonymous):

Oh whoops, rational numbers.

OpenStudy (anonymous):

rational numbers are not fractions? Are you sure?

OpenStudy (anonymous):

so what do yo reckon it is now?

OpenStudy (anonymous):

Hmm. Man, math is just not my thing. Trying to think.

OpenStudy (anonymous):

lol, just keep trying .. :)

OpenStudy (anonymous):

haha. ok. rational numbers can be expressed as a fraction. A fraction can be represented p/q where p,q are real numbers and q cannot equal zero.

OpenStudy (anonymous):

So is -1/2 a rational number?

OpenStudy (anonymous):

Nope.

OpenStudy (anonymous):

Why do you say no?

OpenStudy (anonymous):

Because you just said rational numbers are not fractions. And it says it can be 'expressed' as a fraction.

OpenStudy (anonymous):

no i didn't! I said rational numbers can be expressed as a fraction. A fraction can be represented p/q where p,q are real numbers and q cannot equal zero.

OpenStudy (anonymous):

So -1 is a real number and 2 is a real number which isn't zero. Therefore -1/2 is a rational number

OpenStudy (anonymous):

What. You just said, "rational numbers are not fractions? Are you sure?".. I'm confused hha.

OpenStudy (anonymous):

So then it is D since it's a rational number?

OpenStudy (anonymous):

i was questioning you that. I never said it explicitly. haha.

OpenStudy (anonymous):

Oh lmao, I thought you were stating that haha.

OpenStudy (anonymous):

yea it should be d.

OpenStudy (anonymous):

Alright thanks man!

OpenStudy (anonymous):

cheers bro

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