解:原式=-(3+23/24)/(-1/12) =(3+23/24)×12 =36+23/2 =36+11又1/2 =47又1/2
解:-(3+23/24)/(-1/12)=(3+23/24)×12=36+23=59.
-(3+23/24)/(-1/12)=(3+23/24)×12=36+23/2=36+11又1/2=47又1/2