Whenever you say "divided by", you have the ingredients of a fraction.
80 divided by 50 is 80/50 .
It's also 8/5 , and 13/5 and 1.6 .
130
80
80
50
150/80 or 15/8
50/80
0.78
5.3333
1000/50
80% is 80/100. If we simplified this we would be left with. 4/5. 80 divided by 20. 100 divided by 20.
Expressed as a proper fraction in its simplest form, 50/80 is equal to 5/8 or five eighths.
40 divided by 50% is 40 doubled. So 80.