BRAINLIEST TO CORRECT

Answer:
6/8.
Step-by-step explanation:
the cool part about fractions is that you can convert fractions to decimals using so many tools out there.
first, you could want to convert 3/5 into a decimal. 3/5=0.6.
second, convert 6/8 into a decimal. 6/8=0.75.
now, it should be easier to compare. therefore, 6/8 is greater than 3/5.
here's a helpful tool if you want to convert fractions to decimals;
https://www.calculator.net/fraction-calculator.html