Giúp với ạ

Đặt tính rồi tính:

a)0,6:0,4 b)40,32:5,6 c)266,22:34

a) $\begin{array}{l}\\{0\not{,}6}\\{\,\,\,\,\,\,\,\,\,20}\\{\,\,\,\,\,\,\,\,\,\,\,\,0}\end{array}\begin{array}{|l}{0\not{,}4}\\\hline{1,5}\end{array}$

b) $\begin{array}{l}\\{40\not{,}3,2}\\{\,\,\,\,\,\,\,\,\,11\,\,\,2}\\{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,0}\end{array}\begin{array}{|l}{5\not{,}6}\\\hline{7,2}\end{array}$

c) $\begin{array}{l}\\\\{266,22}\\{\,\,\,28\,\,\,2}\\{\,\,\,\,\,\,1\,\,\,02}\\{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,0}\end{array}\begin{array}{|l}{34}\\\hline{7,83}\end{array}$