Respuesta :

For 16/18 it would be 8/9
For 10/15 it would be 2/3

Answer:

8/9 and 2/3

Step-by-step explanation:

find common factor with each of the numbers and divide by that

16 and 18, 2 is the gcf.

16/2=8   18/2=9

the gcf in the second one is 5.

10/5=2  15/5=3

Hope this helps!