а) 7,9 = 7 + 9/10 = 74/4 + 9/10 = 28/4 + 9/10 = 28 9/10 = 28 9/4б) 2,3 = 2 + 3/10 = 25/5 + 3/10 = 10/5 + 3/10 = 10 3/10 = 10 3/5
а) 7,9 = 7 + 9/10 = 74/4 + 9/10 = 28/4 + 9/10 = 28 9/10 = 28 9/4
б) 2,3 = 2 + 3/10 = 25/5 + 3/10 = 10/5 + 3/10 = 10 3/10 = 10 3/5