Explanation:
Hey there!!!!
Given,

Simply wirk with it.
Take LCM.

Now, multiply with 2.

cut 2 and 12.

Take 2 common in numerator.

Cut 2 and 6.

Take 3 common.

Cutting 3 and 3 we get,
=(3t - 16).
While simplifying you can do slowly and simply to get answer.
Hope it helps...