sederhanakan 1 1per2 banding 2 1per4 =

[tex] = 1 \frac{1}{2} \div 2 \frac{1}{4} \\ = \frac{3}{2} \div \frac{9}{4} \\ = \frac{3}{2} \times \frac{4}{9} \\ = \frac{12}{18} \\ = \frac{2}{3} [/tex]