× & ÷ Ans

[09] (A ÷ B) ÷ (C ÷ D) =
AD
BC
[10] (A ÷ B ÷ C) ÷ D =
A
BCD
[11] A ÷ (B ÷ C) ÷ D =
AC
BD
[12] A ÷ (B ÷ C ÷ D) =
ACD
B
[13] A ÷ [ B ÷ (C ÷ D) ] =
AC
BD
[14] A ÷ (B ÷ C × D) =
AC
BD