You need to divide the miles by the hours to et the Average speed. M divided by h = s Because to get the mph (miles per hour) you multiply the average speed to the hours. S•h=mph
If you take 3/4 and add it to 1/4 you get 1 then you at 1+1+2=4 then you add the lemon ie which is 2/4, therefore, the answer is 4 2/4 or 4 1/2(simplified).
