this is what you have to do multiply 7x2 =14then add it by 3 =17 you will get 17/7 then simplify and you will get 3/2 and then you use this method call kmf wich means keep ,multiply,and flip so you keep 3/2 then multiply it by 4/1 and you will get 12/2 wich simplify's to 6 and thats your answer your welcome :)