What are the aspect ratios for all Android phone and tablet devices?

Question

I\'m looking for a list of all screen aspect ratios for popular Android based Phones and Tablets.

Answer 1

the best way to calculate the equation is simplified. That is, find the maximum divisor between two numbers and divide:

ex.

1920:1080 maximum common divisor 120 = 16:9
1024:768  maximum common divisor 256 = 4:3
1280:768  maximum common divisor 256 = 5:3

may happen also some approaches