Вычислите (7-2/3):(1 3/4-1/6)*(1 1/5+2 2/3+1/6)

19/3+(3/4-1/6)×(1/5+4/3+1/6)
19/3÷7/12×17/10
19/3×12/7×17/10
19×4/7×17/10
19×2/7×17/5
646/35