# How to round off repeating numbers after decimal.

## Recommended Posts

Hello.

Please tell me how to round off repeating numbers after decimal.

For example,

how to round off

0.6666666666......

would it be 6.5 or 6.7?

and why?

##### Share on other sites

When you round off you don't move the decimal point which you have done there...it will still be 'nought point something' unless you are rounding to the nearest whole number which would be 1 in that example's case. If the last digit you are interested in is 5 or higher you round up by 1 the digit before that one.

So, 8.888 would be 8.89

Here's a more complete explanation on rounding off:

http://www.mathsteacher.com.au/year7/ch06_decimals/14_round/off.htm

Edited by StringJunky
##### Share on other sites

If the last digit you are interested in is 5 or higher you round up by 1 the digit before that one.

This is the convention we all follow.

##### Share on other sites

i got it. thank you.

and i moved the decimal by fault.

##### Share on other sites

AFAIK, the recurring number has a dot or a line above it.

i.e 1/3 expressed as a decimal is

Edit:

oh wait, that's not rounding off is it?

Edited by tomgwyther
##### Share on other sites

AFAIK, the recurring number has a dot or a line above it.

i.e 1/3 expressed as a decimal is

Edit:

oh wait, that's not rounding off is it?

I thought the same way you did at first as well but checked myself.

## Create an account

Register a new account