( 3,05-2,125*3,2):5/6+ 1 целая 1/6
1)2,125*3,2=6,8 2)6,8-3,05=3,75 3)3,75:5/6=375/1200 4)375/1200+1ц. 1/6=575/1200=115/240=23/48