12 muncitori...........18 zile
1 muncitor..............12•18 zile=216zile
10 muncitori..........216zile:10
Ca sa putem imparti la 10 transformam 216 zile: in zile, ore si minute, tinand cont ca o zi are 8 ore de munca
216zile=210zile+6(zile)•8ore=210zile+6•8•60minute=210zile+2880minute
=> 216zile:10=
=(210zile+2880minute):10
=21 zile +288minute
=21zile+240minute+48minute
=21zile+4ore+48minute
