Реши примеры с дробями: 3 1/4 * 4

Конечно, давай решим эти примеры вместе! 1. $3\frac{1}{4} \cdot 4 = \frac{13}{4} \cdot 4 = 13$ 2. $10.5 \cdot 5\frac{2}{5} = 10.5 \cdot \frac{27}{5} = \frac{105}{10} \cdot \frac{27}{5} = \frac{21}{2} \cdot \frac{27}{5} = \frac{567}{10} = 56.7$ 3. $0 : 2\frac{1}{7} = 0 : \frac{15}{7} = 0$ 4. $3\frac{5}{16} \cdot 1 = 3\frac{5}{16}$ 5. $2\frac{17}{18} : 1 = 2\frac{17}{18}$ 6. $4\frac{1}{2} : 6\frac{3}{4} = \frac{9}{2} : \frac{27}{4} = \frac{9}{2} \cdot \frac{4}{27} = \frac{1}{1} \cdot \frac{2}{3} = \frac{2}{3}$ 7. $1\frac{51}{93} : 1\frac{5}{31} = \frac{144}{93} : \frac{36}{31} = \frac{144}{93} \cdot \frac{31}{36} = \frac{4}{3} \cdot \frac{1}{1} = \frac{4}{3} = 1\frac{1}{3}$ 8. $2\frac{1}{2} \cdot 3\frac{1}{15} = \frac{5}{2} \cdot \frac{46}{15} = \frac{1}{1} \cdot \frac{23}{3} = \frac{23}{3} = 7\frac{2}{3}$ 9. $4\frac{3}{9} \cdot 3\frac{3}{4} = 4\frac{1}{3} \cdot 3\frac{3}{4} = \frac{13}{3} \cdot \frac{15}{4} = \frac{13}{1} \cdot \frac{5}{4} = \frac{65}{4} = 16\frac{1}{4}$ 10. $1\frac{6}{7} \cdot 3\frac{5}{10} = \frac{13}{7} \cdot \frac{35}{10} = \frac{13}{1} \cdot \frac{5}{10} = \frac{13}{1} \cdot \frac{1}{2} = \frac{13}{2} = 6\frac{1}{2}$ 11. $8 : \frac{4}{7} = 8 \cdot \frac{7}{4} = 2 \cdot 7 = 14$ **Ответы:** 1. 13 2. 56.7 3. 0 4. $3\frac{5}{16}$ 5. $2\frac{17}{18}$ 6. $\frac{2}{3}$ 7. $1\frac{1}{3}$ 8. $7\frac{2}{3}$ 9. $16\frac{1}{4}$ 10. $6\frac{1}{2}$ 11. 14