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Peredhel
Hi!!

Subtracting a negative is the same as adding a positive. 

So we can write this as
[tex]- \frac{9}{12} + \frac{1}{3} [/tex]
We need to change [tex] \frac{1}{3} [/tex] to have the same denominator as [tex]- \frac{9}{12} [/tex].
[tex] \frac{1}{3} * \frac{4}{4} = \frac{4}{12} [/tex]
Now the equation is
[tex]- \frac{9}{12} + \frac{4}{12} [/tex]
Solve by adding the numerators.
[tex]- \frac{9}{12} + \frac{4}{12} = -\frac{5}{12}[/tex]

The answer is [tex] -\frac{5}{12}[/tex]

Hope this helps! :)
-Peredhel
VictorZ
Hi there!

[tex]\dfrac {- 9}{12}[/tex] - ( [tex]\dfrac {- 1}{3}[/tex] )

⇒ [tex]\dfrac {- 9}{12}[/tex] + [tex]\dfrac {1}{3}[/tex]

⇒ [tex]\dfrac {- 9 + 4}{12}[/tex] = [tex]\dfrac {- 5}{12}[/tex]

Hence,
Option 4ᵗʰ : [tex]\dfrac {- 5}{12}[/tex] is Correct.

~ Hope it helps!

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