# Question #21ead

##### 1 Answer

Jul 6, 2017

#### Answer:

#### Explanation:

If you actually do the division you get -0.666666... going on for ever.

Eventually you get fed up with writing the 6's and decide to round the answer. As soon as you do that you introduce an error.

You can also write this as

Rounding -0.6666666... to 2 decimal places gives: