We're going to use the 'KCF' method to solve this question.
We keep the first fraction, [tex] \frac{9}{10} [/tex].
Then, we change the sign to the opposite of it, which would be multiplication.
[tex]\frac{9}{10} [/tex] x
Finally, we flip the last fraction, having the denominator at the top to be the numerator and the numerator at the bottom to be the denominator.
[tex]\frac{9}{10} [/tex] x [tex] \frac{4}{3} [/tex]
At the end, we multiply straight across:
[tex]\frac{9}{10} [/tex] x [tex] \frac{4}{3} [/tex] = [tex] \frac{36}{30}[/tex]
* Remember, we only use KCF in dividing fractions
So our final answer is [tex] \frac{36}{30}[/tex] until you simplify it.
[tex] \frac{36}{30}[/tex] = 1[tex] \frac{1}{5} [/tex]
Hope this helps!~