6 CHALLENGE Judy's brother Sam has a collection of 96 comic books. What are the ten ways Sam could divide his comic books into equal groups?

Сравните числа: \( \begin{array}{lll}\text { а) } \frac{11}{20} \text { и } \frac{7}{12} ; & \text { б) } \frac{11}{18} \text { и } \frac{11}{19} ; & \text { в) } 0,48 \text { и } \frac{25}{24}\end{array} \)

b) \( 4 / \frac{1}{2} \)

На автомашине планировали перевезти сначала \( 3 \frac{8}{9} \) т груза, а г том ещё \( 2 \frac{11}{18} \) т. Однако перевезли на \( 1 \frac{1}{4} \) т меньше, чем предпол гали. Сколько всего тонн груза перевезли на автомашине?

5. Box \( A \) has a mass of \( 3 \frac{3}{8} \mathrm{~kg} \). The mass of Box \( B \) is \( \frac{5}{6} \) the mass of Box \( A \). How much heavier is Box \( A \) than Box \( B \) ?

6. Six classes, each with 38 pupils, went on an excursion. If one teacher way required to supervise 15 pupils, how many teachers were needed on the excursion?