Lay the 4 m plank as one bar and cut it into equal pieces of $$\frac{2}{3}$$ m. The number of pieces is 4 ÷ $$\frac{2}{3}$$.<br><br>[[model:questions/solutions/q5247.png]]<br><br>• 4 ÷ $$\frac{2}{3}$$ = 4 × $$\frac{3}{2}$$<br>• 4 × $$\frac{3}{2}$$ = $$\frac{12}{2}$$ = 6<br><br>He can cut 6 planks.<br>Check: 6 × $$\frac{2}{3}$$ m = $$\frac{12}{3}$$ m = 4 m. ✓