103 : 119 30 7 : 49 8' д) 24.11. 48' 5 e) 6.30; ж) 35.7; 14 3) 54 45.9.15.

Решим примеры:

1. $$\frac{30}{49} \times \frac{7}{8} = \frac{30 \times 7}{49 \times 8} = \frac{30 \times 1}{7 \times 8} = \frac{30}{56} = \frac{15}{28}$$
   Ответ: $$\frac{15}{28}$$
2. $$ 24 \times \frac{11}{48} = \frac{24 \times 11}{48} = \frac{1 \times 11}{2} = \frac{11}{2} = 5\frac{1}{2} $$ Ответ: $$5\frac{1}{2}$$
3. $$6 \times 3\frac{5}{6} = 6 \times \frac{3 \times 6 + 5}{6} = 6 \times \frac{18 + 5}{6} = 6 \times \frac{23}{6} = \frac{6 \times 23}{6} = 23$$ Ответ: 23
4. $$ 3\frac{5}{14} \times 7 = \frac{3 \times 14 + 5}{14} \times 7 = \frac{42 + 5}{14} \times 7 = \frac{47}{14} \times 7 = \frac{47 \times 7}{14} = \frac{47 \times 1}{2} = \frac{47}{2} = 23\frac{1}{2} $$ Ответ: $$23\frac{1}{2}$$
5. $$ 5\frac{4}{45} \times 9 \times 15 = \frac{5 \times 45 + 4}{45} \times 9 \times 15 = \frac{225 + 4}{45} \times 9 \times 15 = \frac{229}{45} \times 9 \times 15 = \frac{229 \times 9 \times 15}{45} = \frac{229 \times 1 \times 1}{1} = 229 $$ Ответ: 229