Let's multiply. \( \begin{array}{lllll}\text { a) } 3 \times \frac{1}{5} & \text { b) } 8 \times \frac{2}{7} & \text { c) } \frac{5}{9} \times 2 & \text { d) } \frac{2}{3} \times 9 & \text { e) } \frac{5}{6} \times 24 \\ \begin{array}{lllll}10 \times \frac{7}{8} & \text { g) } 18 \times \frac{2}{15} & \text { h) } \frac{2}{3} \times \frac{4}{5} & \text { i] } \frac{3}{4} \times \frac{5}{8} & \text { j) } \frac{4}{7} \times \frac{7}{8} \\ \text { k) } \frac{5}{8} \times \frac{8}{15} & \text { l) } \frac{5}{6} \times \frac{8}{15} & \text { m) } \frac{15}{16} \times \frac{12}{25} & \text { n) } 1 \frac{1}{2} \times 1 \frac{1}{3} & \text { o) } 4 \frac{3}{8} \times 1 \frac{1}{15}\end{array} \\ \text { el's divide. }\end{array} \)

**a)** \( 3 \times \frac{1}{5} = \frac{3}{5} \) --- **b)** \( 8 \times \frac{2}{7} = \frac{16}{7} \) --- **c)** \( \frac{5}{9} \times 2 = \frac{5 \times 2}{9} = \frac{10}{9} \) --- **d)** \( \frac{2}{3} \times 9 = \frac{2 \times 9}{3} = \frac{18}{3} = 6 \) --- **e)** \( \frac{5}{6} \times 24 = \frac{5 \times 24}{6} = \frac{120}{6} = 20 \) --- **f)** \( 10 \times \frac{7}{8} = \frac{10 \times 7}{8} = \frac{70}{8} = \frac{35}{4} = 8\frac{3}{4} \) --- **g)** \( 18 \times \frac{2}{15} = \frac{18 \times 2}{15} = \frac{36}{15} = \frac{12}{5} = 2\frac{2}{5} \) --- **h)** \( \frac{2}{3} \times \frac{4}{5} = \frac{2 \times 4}{3 \times 5} = \frac{8}{15} \) --- **i)** \( \frac{3}{4} \times \frac{5}{8} = \frac{3 \times 5}{4 \times 8} = \frac{15}{32} \) --- **j)** \( \frac{4}{7} \times \frac{7}{8} = \frac{4 \times 7}{7 \times 8} = \frac{28}{56} = \frac{1}{2} \) --- **k)** \( \frac{5}{8} \times \frac{8}{15} = \frac{5 \times 8}{8 \times 15} \) Cancel the common factor \(8\): \( = \frac{5}{15} = \frac{1}{3} \) --- **l)** \( \frac{5}{6} \times \frac{8}{15} = \frac{5 \times 8}{6 \times 15} = \frac{40}{90} \) Divide numerator and denominator by \(10\): \( = \frac{4}{9} \) --- **m)** \( \frac{15}{16} \times \frac{12}{25} = \frac{15 \times 12}{16 \times 25} = \frac{180}{400} \) Divide numerator and denominator by \(20\): \( = \frac{9}{20} \) --- **n)** Convert mixed numbers to improper fractions: \( 1\frac{1}{2} = \frac{3}{2} \) and \( 1\frac{1}{3} = \frac{4}{3} \) Multiply: \( \frac{3}{2} \times \frac{4}{3} = \frac{12}{6} = 2 \) --- **o)** Convert mixed numbers: \( 4\frac{3}{8} = \frac{4 \times 8 + 3}{8} = \frac{35}{8} \) and \( 1\frac{1}{15} = \frac{1 \times 15 + 1}{15} = \frac{16}{15} \) Multiply: \( \frac{35}{8} \times \frac{16}{15} = \frac{35 \times 16}{8 \times 15} \) Since \( \frac{16}{8} = 2 \), this becomes: \( = \frac{35 \times 2}{15} = \frac{70}{15} = \frac{14}{3} = 4\frac{2}{3} \)