The circle has 8 equal parts. 3 parts are coloured, so 5 parts are NOT coloured.<br>Check each option:<br>- 8 equal parts: correct<br>- 3/8 coloured: correct<br>- 5 parts NOT coloured: correct<br>- 6/8 NOT coloured: wrong (it should be 5/8)<br><br>Final Answer: 6/8 of the circle is NOT coloured