So we want to write 6 2/3 as a decimal number and as a fraction. Lets start with turning it into a fraction: 6 2/3 is 6*3= 18 and 2/3 and that is equal to 20/3. Now lets turn it into a decimal number: 20/3=6.6666666666666667. So the correct answer is 6 2/3=20/3=6.6666666666667
