Can someone answer this i'm stuck.

You have to make all the denominators the same by dividing a number that can be divided by both denominators           ex:   4/6 +  1/2 , 4/6= 4/6 ,  1/2=3/6
so 4/6 + 1/2 is the same as 4/6 + 3/6

The answer is 1 because you have to flip the sign when dividing by negative number and 3

/-/////////looks tough ‍♂️