Վարժ․ 1153
ա) 18/30, 22/30, 63/30
բ) 54/84, 100/84, 3/84
գ) 910/390, 351/390, 540/390
դ) 62/150, 69/150, 132/150
ե) 15/90, 33/90, 555/90
զ) 164/48, 39/48, 42/48
Վարժ․ 1154
ա) 12/24, 18/24
բ) 36/24, 20/24
գ) 14/24, 54/24
դ) 18/24, 68/24
ե) 56/24, 22/24
զ) 53/24, 112/24
է) 27/24, 108/24
ը) 2/24, 15/24
Վարժ․ 1156
ա) 208/65, 8/65
բ) 128/108, 15/108
գ) 4/162, 306/162
դ) 120/720, 190/720
ե) 288/1089, 77/1089
զ) 96/210, 55/210
է) 165/1080, 350/1080
ը) 29/56, 18/56
Վարժ․ 1159
ա) 6/21 = 6*14/21*14 = 84/294
23/14 = 23*21/21*14 = 483/294
8/49 = 8*6/49*6 = 48/294
բ) 4/121 = 4*8/121*8 = 32/968
3/88 = 3*11/88*11 = 33/968
5/11 = 5*88/11*88 = 40/968
գ) 71/64 = 71*45/64*45 = 3195/2880
5/80 = 5*36/80*36 = 180/2880
32/72 = 32*40/72*40 = 1280/2880
դ) 13/36 = 13*3/36*3 = 39/108
15/54 = 15*2/54*2 = 30/108
3/18 = 3*6/18*6 = 18/108
ե) 30/20 = 30*15/20*15 = 450/300
19/50 = 19*6/50*6 = 114/300
23/150 = 23*2/150*2 = 46/300
զ) 6/51 = 6*10/51*10 = 60/510
11/170 = 11*3/170*3 = 33/510
9/10 = 9*51/10*51 = 459/510
Վարժ․ 1160
ա) 121/11 : 11 = 11/1
բ) 169/26 : 13 = 13/2
գ) 85/15 : 5 = 17/3
դ) 6/106 : 2 = 3/53
ե) 24/15 : 3 = 8/5
զ) 72/108 : 36 = 2/3
է) 625/325 : 25 = 25/13
ը) 32/80 : 16 = 2/5
թ) 75/90 : 15 = 5/6
ժ) 245/275 : 5 = 49/55
ժա) 60/144 : 12 = 5/12
ժբ) 308/1024 : 4 = 77/256
Վարժ․ 1163
20 Վայրկյան, 720 Վայրկյան, 10,800 Վայրկյան:
Վարժ․ 1164
BC = 9 սմ
BD = 10 սմ
BE = 6 սմ
Վարժ․ 1166
481 – 373 = 108
16 * 6 = 96
108 + 96 = 204
2530 : 23 = 110
93 + 34 = 127
127 – 110 = 17
204 : 17 = 12
Վարժ․ 1168
Կատարված է 1/5
մնացել է 4/5