View Compilation Error

0_0_37580386_22891.cpp: In function 'int main()':
0_0_37580386_22891.cpp:7:21: error: expected primary-expression before 'double'
   q=((double)(m))/((double)/(n)));
                     ^
0_0_37580386_22891.cpp:7:21: error: expected ')' before 'double'
0_0_37580386_22891.cpp:7:34: error: expected ')' before ';' token
   q=((double)(m))/((double)/(n)));
                                  ^