# Breuken verm. (reeks 1)

#### Vermenigvuldig de breuken

1. $$\frac{3}{10} . \frac{6}{2}$$
2. $$\frac{7}{11} . \frac{3}{3}$$
3. $$\frac{8}{8} . \frac{2}{12}$$
4. $$\frac{3}{7} . \frac{5}{4}$$
5. $$\frac{5}{3} . \frac{12}{3}$$
6. $$\frac{3}{8} . \frac{5}{2}$$
7. $$\frac{4}{6} . \frac{7}{10}$$
8. $$\frac{7}{9} . \frac{3}{2}$$
9. $$\frac{11}{4} . \frac{2}{11}$$
10. $$\frac{4}{2} . \frac{8}{2}$$
11. $$\frac{5}{3} . \frac{3}{8}$$
12. $$\frac{3}{10} . \frac{10}{7}$$

#### Vermenigvuldig de breuken

##### Verbetersleutel

1. $$\frac{3}{10} . \frac{6}{2}\\=\frac{3}{10} . \frac{3}{1}\\=\frac{3.3}{10.1}\\=\frac{9}{10}$$
2. $$\frac{7}{11} . \frac{3}{3}\\=\frac{7}{11} . \frac{1}{1}\\=\frac{7.1}{11.1}\\=\frac{7}{11}$$
3. $$\frac{8}{8} . \frac{2}{12}\\=\frac{1}{1} . \frac{1}{6}\\=\frac{1.1}{1.6}\\=\frac{1}{6}$$
4. $$\frac{3}{7} . \frac{5}{4}\\=\frac{3.5}{7.4}\\=\frac{15}{28}$$
5. $$\frac{5}{3} . \frac{12}{3}\\=\frac{5}{3} . \frac{4}{1}\\=\frac{5.4}{3.1}\\=\frac{20}{3}$$
6. $$\frac{3}{8} . \frac{5}{2}\\=\frac{3.5}{8.2}\\=\frac{15}{16}$$
7. $$\frac{4}{6} . \frac{7}{10}\\=\frac{2}{3} . \frac{7}{10}\\=\frac{2.7}{3.10}\\=\frac{14}{30}\\=\frac{7}{15}$$
8. $$\frac{7}{9} . \frac{3}{2}\\=\frac{7.3}{9.2}\\=\frac{21}{18}\\=\frac{7}{6}$$
9. $$\frac{11}{4} . \frac{2}{11}\\=\frac{11.2}{4.11}\\=\frac{22}{44}\\=\frac{1}{2}$$
10. $$\frac{4}{2} . \frac{8}{2}\\=\frac{2}{1} . \frac{4}{1}\\=\frac{2.4}{1.1}\\=\frac{8}{1}= 8$$
11. $$\frac{5}{3} . \frac{3}{8}\\=\frac{5.3}{3.8}\\=\frac{15}{24}\\=\frac{5}{8}$$
12. $$\frac{3}{10} . \frac{10}{7}\\=\frac{3.10}{10.7}\\=\frac{30}{70}\\=\frac{3}{7}$$
Oefeningengenerator vanhoeckes.be/wiskunde 2024-08-09 05:37:43