a) -4/9 : ( +16/27 )
= -4/9 * ( +27/16 )
= -108/144
= -54/72
= -27/36
= -9/12
= -3/4
d) 3,05 : 0,005
= 305/100 : 5/1000
=305/100 * 1000/5
= 610/1
= 610
g) -1,5 : 5/4
= -15/10 : 5/4
= -15/10 * 4/5
= -6/5
i) ( -11/14 ) : ( - 3 1/7 ) : ( -5/11 )
= ( -11/14 ) : ( -22/7 ) : ( -5/11 )
= ( -11/14 ) * ( -7/22 ) : ( -5/11 )
= 1/4 : ( -5/11 )
= 1/4 * ( -11/5 )
= -11/20