807.
![](https://astghik.gaboyan.am/wp-content/uploads/2023/02/image-87.png)
ա) + 18 1/2
բ) + 4 5/9
գ) — 1/3
դ) 0
ե) + 3/11
զ) — 14 2/5
808.
![](https://astghik.gaboyan.am/wp-content/uploads/2023/02/image-88.png)
A= -2 3/5
B= -1 2/5
C= + 3/5
D= +1 4/5
E= +2 4/5
810.
![](https://astghik.gaboyan.am/wp-content/uploads/2023/02/image-89.png)
ա) 68%
բ) Երկրորդ թեկնածուի օգտին
գ) 10%
դ) 33%
811.
![](https://astghik.gaboyan.am/wp-content/uploads/2023/02/image-90.png)
ա) Ոչ
բ) Այո
813.
![](https://astghik.gaboyan.am/wp-content/uploads/2023/02/image-91.png)
Լուծում
6 1/2.15/1=195/2
195/2:2 1/2=390/10=39/1=39
Պատ՝. 39
814.
![](https://astghik.gaboyan.am/wp-content/uploads/2023/02/image-92.png)
![](https://astghik.gaboyan.am/wp-content/uploads/2023/02/image-93.png)