(6-9 3/5)*(-1 2/3)-12:(-3/4+1/8)
1) 6-93/5=-63/5 2) -63/5* (-12/3)=252/5 3) -3/4+1/8= -5/8 4) 12/(-5/8)= -12*8/5=-96/5 5)252/5-(-96/5)=252/5+96/5=348/5