745. -7/2 = -7 : 2, 7:(-2)
1/2 = 1:2, -1:(-2)
-8 2/5 = -45/5 = -42: 5, 42:-5
-3 3/25 = -78/25 = -78 : 25, 78 : (-25)
2 1/4 = 9/4 = 9:4, -9:(-4)
-17 3/7 = -122/7 = -122:7 = 122:(-7)

747. 7/9 = -7/9
-14/15 = 14/15
8/3 = -8/3
-11/19 = 11/19
-5/6 = 5/6
25/32 = -25/32
7/20 = -7/20

750. ա) -8, -3/2, -11, -9 13/20, -5 837/1000, -14, -25 3/7, -7 23/250
բ) 4/3, 8 3/4
գ) -3/2, -5 837/1000, -25 3/7, -7 23/250
դ) 1, 0, 2
ե) -8, -11, 13, 1, -14, 2
զ) 13, 1, 2

752. այո

755. M = -5 2/4
l = -4
K = -4 3/4
G = -2 2/4
F = -1 2/4
A = 3/4
B = 2
C = 2 3/4
D = 3 3/4
E = 4 2/4

757. a = բացասական b = դրական