How do round this number 6:725

If you're rounding it to the nearest whole number it would be 7, if you're rounding it to the tenths it would be 6.8, to the nearest hundredth it would be 6.73

6.725 If you want a whole number is 7 because anything over 5 gets rounded up. if you want it to the nearest tenth then its 6.7 because then you're using the next number after the 7 to round which is 2 and since it is under 5 your 7 stays the same.