Răspuns :
(6/2:6/3):6:12/19=
=(6/2×3/6):6:12/19=
=18/12:6:12/19=
=18/12×1/6:12/19=
=18/72:12/19=
=18/72×19/12= (simplificam prin taiere 18 cu 12 prin 6)
=3/72×19/2=57/144
=(6/2×3/6):6:12/19=
=18/12:6:12/19=
=18/12×1/6:12/19=
=18/72:12/19=
=18/72×19/12= (simplificam prin taiere 18 cu 12 prin 6)
=3/72×19/2=57/144