-3/72,7:(-3/54):(-3 i1/7)

-3/72,7:(-3/54):(-3 i1/7)= -30/727:(-3/54):(-22/7)= =-30/727:(-3/54)x(7/22)= =-30/727:(-21/1188)= =-30/727x(-1188/21)= =35640/15267=2 i 5106/15267=2 i 1702/5089