2/5x2/5 = 3całe 2/5x 3całe 2/5 x 3 całe 2/5=

2/5 * 2/5= 4/25 3 i 2/5 * 3 i 2/5 * 3 i 2/5= = 17/5 * 17/5 * 17/5= = 4913/125 = = 39 i 38/125