8/-4 divided by -3/9

Question

twix01 · Answer

@ThisGirlPretty

twix01 · Answer

pls help

ThisGirlPretty · Answer

Hmmm @Vocaloid

Vocaloid · Answer

gonna see what tiger says then I'll step in if needed

tigerlover · Answer

Alright so we know we can't have negitive denominators. The whole fraction must be negitive or positive. So what do we do here>

twix01 · Answer

Well, 8/-4 is the same as -8/4 right?

tigerlover · Answer

Not exactly. -8/4 is the whole negitve. 8/-4 is just the negitive 4. This is not the same.

tigerlover · Answer

So what do we need to do to divide these?

twix01 · Answer

They need to have the same denominator right?

twix01 · Answer

Idk, sorry, I'm really bad at math.

tigerlover · Answer

No, they need to both be positive denominators.

twix01 · Answer

Oh. Okay.

twix01 · Answer

Is the answer 6?

tigerlover · Answer

so we take $$8/-4 \div -3/9 and flip \it \to 8/4\div3/9$$

tigerlover · Answer

$$8/4\div3/9= 6$$

tigerlover · Answer

But we still need one more thing to make this answer correct.

tigerlover · Answer

What do we need to do?

twix01 · Answer

Add back in the negative signs?

tigerlover · Answer

Correct! So the answer would be $$-6$$

twix01 · Answer

Thank you!

tigerlover · Answer

@Vocaloid correct me if I'm wrong

Vocaloid · Answer

a negative number divided by a negative number is positive (the negative signs cancel out)

so 6 not -6

tigerlover · Answer

Thank you voca. I totally forgot about that

Vocaloid · Answer

otherwise, well done

tigerlover · Answer

Thank you ^^;

twix01 · Answer

You guys are great at math! Thank you!

tigerlover · Answer

No problem! <3