А)3/8 : 2/5= 3/8 * 5/2 = 15/16 15/16 * 2/5 = 3/8
Б)4/25 : 8/15 = 4/25 * 15/8= 3/10=0,3 0,3*8/15 = 4/25
В)2/5 : 4/5= 2/5 * 5/4 = 1/2 1/2 * 4/5 = 4/10 = 2/5
Г)8/45 : 4/15= 8/45 * 15/4 = 6/9 = 2/3 2/3 * 4/15 = 8/45
А)3/8 : 2/5= 3/8 * 5/2 = 15/16 15/16 * 2/5 = 3/8
Б)4/25 : 8/15 = 4/25 * 15/8= 3/10=0,3 0,3*8/15 = 4/25
В)2/5 : 4/5= 2/5 * 5/4 = 1/2 1/2 * 4/5 = 4/10 = 2/5
Г)8/45 : 4/15= 8/45 * 15/4 = 6/9 = 2/3 2/3 * 4/15 = 8/45