- a) $$3 \frac{1}{9} \cdot 5 = \frac{28}{9} \cdot 5 = \frac{140}{9} = 15 \frac{5}{9}$$
- б) $$8 \frac{2}{9} \cdot 4 = \frac{74}{9} \cdot 4 = \frac{296}{9} = 32 \frac{8}{9}$$
- в) $$4 \cdot 2 \frac{1}{5} = 4 \cdot \frac{11}{5} = \frac{44}{5} = 8 \frac{4}{5}$$
- г) $$8 \cdot 2 \frac{1}{11} = 8 \cdot \frac{23}{11} = \frac{184}{11} = 16 \frac{8}{11}$$
- д) $$5 \frac{1}{5} \cdot 5 = \frac{26}{5} \cdot 5 = 26$$
- е) $$3 \frac{3}{7} \cdot 7 = \frac{24}{7} \cdot 7 = 24$$
- ж) $$6 \cdot 10 \frac{1}{6} = 6 \cdot \frac{61}{6} = 61$$
- з) $$11 \frac{1}{3} \cdot 3 = \frac{34}{3} \cdot 3 = 34$$
- и) $$23 \frac{5}{8} \cdot 8 = \frac{189}{8} \cdot 8 = 189$$
- к) $$11 \frac{7}{15} \cdot 15 = \frac{172}{15} \cdot 15 = 172$$
Ответ: a) $$15 \frac{5}{9}$$; б) $$32 \frac{8}{9}$$; в) $$8 \frac{4}{5}$$; г) $$16 \frac{8}{11}$$; д) 26; е) 24; ж) 61; з) 34; и) 189; к) 172