For the 4/5 you do a number line all the way to 4/5 first u start off with 1/5 then 2/5 and so on
1/8
If you can make the bottom numbers (denominator) The same that you can use subtract the top numbers like normally
Y=mx+b
Mx is the rate of change
B is your starting point
Started with 1000, A
-200 is the rate of change, D
