Simple, all you want to do is subtract. 7-2=5; and denominators are not subtracted thus it would be 5/8. And that is the simplest form already 5/8.
What do you need help with?
Answer:

Step-by-step explanation:
First we move the constant to the right and change its sign
we add the numbers and divide it by 3
and you get 8
Last one..................................................................................................................................................
Answer:
Step-by-step explanation:
Based on the fact that it is congruent, it is also 48 degrees.