What is greater 0.75 or 4/5

4/5 Is the answer.

Here's why

4/5 and 0.75

4/5 is really 0.8 which can be written as 0.80 without altering its value.

Now compare 0.80 and 0.75, 0,80 is greater than 0.75 so 4/5 is greater than 0.75

Another method:

4/5 and 0.75

0.75 is really 3/4

Compare 4/5 and 3/4 or 16/20 and 15/20, obviously 16/20 is greater than 15/20 so 4/5 is greater than 0.75