/ дробь
\ деление
36x-9x2x+2=0
36x-18x+2=0
18x+2=0
18x=-2
x=-2\18
x=-2/18
x=-2/18
7, 045*100=704, 5!!!!!!!
0, 8*1000=800!!!!
25, 14:10=2, 514!!!!
6, 38:100=0, 0638
А) 7/63=12/108
б) 5/3:4/1=15/2:18/1
5/3:(15/2:18/1)=4/1
3/5:(2/15:1/18)=1/4
5/3=4/1*(15/2:18/1)
3/5=1/4*(2/15:1/18)
(5/3:4/1)*18/1=15/2
(3/5:1/4)*1/18=2/15
15/2:(5/3:4/1)=18/1
2/15:(3/5:1/4)=1/18