Question

what expression can be used to suntract 2/3 - 4/9

Answer 1

From the options, we have that:

$\frac{2}{3}\cdot\frac{3}{3}=\frac{6}{9}$

Then, 6/9 is an equivalent fraction to 2/3. Therefore, the expression that can be used to subtract 2/3 - 4/9 is:

$\frac{6}{9}-\frac{4}{9}$

That is. the answer is option C.