6 класс 20/3 : 16/9х = 0,48 : 1,2
20/3:16/9х=0,48:1,2 20/3:16/9х=0,4 16/9х=20/3:4/10 16/9х=50/3 х=50/3:16/9 х=75/8 х=9 3/8