Question

Calculate the distance nathan rides his bike if he rides 9/12 mile each day for 3 days

Answer 1

$\bf 3\cdot \cfrac{9}{12}\implies 3\cdot \cfrac{\underline{3}\cdot 3}{\underline{3}\cdot 4}\implies 3\cdot \cfrac{3}{4}\implies \cfrac{3\cdot 3}{4}\implies \cfrac{9}{4}\implies 2\frac{1}{4}$