-1 5/8= -1 10/16 следовательно -1 9/16 больше
45*63 45*21 45*7 15*7 5*7
-------- = ----------- = ------------ = ---------- = --------- = 5*7=35
81 27 9 3 1
А) 1_2 = 6_12
б) 1_3 = 4_12
в) 2_3 = 8_12
г) 3_4 = 9_12
д) 5_6 = 10_12
е) 3_2 = 18_12
(13 - 5 - 7)*9 = (13 - 12)*9 = 1*9 = 9
-1 - 3 - 5 + 7 + 9 = -9 + 7 + 9 = 7
1 - 3 + 5 + 7 - 9 = -2 + 12 - 9 = 1
-1 - 3 + 5 - 7 + 9 = -4 - 2 + 9 = 3
1 - 35/7 + 9 = 1 - 5 + 9 = 5
(1 - 3 - 5 + 7)*9 = (1 - 8 + 7)*9 = 0*9 = 0