31/8:21/2=22/3 : x/1
31*2/21*8=22*1/3*x
62?168=22/3x
62*3x=22*68
ghb,kbp 9
25/8:5/2=8/3:х
25*2/8*5=8/3:х
50/40=8/3:х
х=50/40:8/3
х=150/320
х=15/32
думаю так
31/8:21/2=22/3 : x/1
31*2/21*8=22*1/3*x
62?168=22/3x
62*3x=22*68
ghb,kbp 9
25/8:5/2=8/3:х
25*2/8*5=8/3:х
50/40=8/3:х
х=50/40:8/3
х=150/320
х=15/32
думаю так