А) 4/20 = 1/5Б) 10/50 = 1/5В) 4/6 = 2/3Г) 10/40 = 1/4Д) 13/26 = 1/2Е) 8/10 = 4/5Ж) 18/27 = 2/3З) 5/15 = 1/3И) 4/12 = 1/3К) 12/18 = 2/3
А) 4/20 = 1/5
Б) 10/50 = 1/5
В) 4/6 = 2/3
Г) 10/40 = 1/4
Д) 13/26 = 1/2
Е) 8/10 = 4/5
Ж) 18/27 = 2/3
З) 5/15 = 1/3
И) 4/12 = 1/3
К) 12/18 = 2/3