3 per 5 dibagi 2 per 7 dibagi 7 per 8

3/5 × 7/2 × 8/7 = 12/5

[tex] = \frac{3}{5} \div \frac{2}{7} \div \frac{7}{8} \\ = \frac{3}{5} \times \frac{7}{2} \times \frac{8}{7} \\ = \frac{3 \times 8}{5 \times 2} \\ = \frac{24}{10} \\ = \frac{12}{5} \\ = 2 \frac{2}{5} [/tex]