How do you covert 31.51 to a mixed number?

Answer 1

31 51/100

I assume a mixed fraction? To do this, take 31 and move it to the left. The decimal .51 means 51 over 100 (51/100). Usually you reduce the 51/100 fraction, but in this case, you cannot, so therefore 31 51/100 is the mixed fraction.

To check this, convert it into an improper fraction: 100*31 + 51 = 3151/100. If you divide 3151 by 100, you get 31.51, meaning that it is correct.