X:1.3/5=3.2/7:2.22/35
Х : 1 3/5 = 3 2/7 : 2 22/35 3 2/7 : 2 22/35 = 23/7 : 92/35 = 5/4 1 3/5 = 8/5 Х : 8/5 = 5/4 Х = 5/4 • 8/5 Х = 2