Разложил -40 пир.
Тарелок -10 Поровну
Положил-? На каж.тар. пир.
А) 2х+8/9=16
2х=16-8/9
2х=144/9-8/9
2х=136/9
х=136/9:2=136/9*1/2
х=68/9
б)108/48-3х=6
-3х=-108/48+6
-3х=-108/48+288/48
-3х=396/48
х=396/48:(-3)=396/48*(-1/3)
х=-132/48=-33/12
67:5=50:5(ост. 17)=10+17:5=13(ост.2)
79:8=72:8(ост.7)=9(ост.7)
97:10=90:10(ост.7)=9(ост.7)
39:5=35:5(ост.4)=7(ост.4)
5) 37:9=4(ост.1)
6) 77:14=5(ост.7)
7) 8866:43=206(ост.8)
<span>8) 159420:910=175(ост.170)</span>
4 1/6 + 5/8=4 4/24+15/24=4 39/24=5 15/24=5 5/8
4 1/12-1 2/5=4 5/60-1 24/60= 3 65/60-1 24/60=2 41/60
4 5/12-(13-10 5/9)=4 5/12-(12 9/9-10 5/9)=
4 5/12-2 4/9= 4 15/36-2 16/36=3 41/36-2 16/36=
=1 25/16=2 9/16