Breuken verm. (reeks 1)

Hoofdmenu Eentje per keer  🖨

Vermenigvuldig de breuken

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

---

Vermenigvuldig de breuken

Verbetersleutel

1. \(\frac{8}{9} . \frac{10}{4}\\=\frac{8}{9} . \frac{5}{2}\\=\frac{8.5}{9.2}\\=\frac{40}{18}\\=\frac{20}{9}\)
2. \(\frac{2}{11} . \frac{6}{2}\\=\frac{2}{11} . \frac{3}{1}\\=\frac{2.3}{11.1}\\=\frac{6}{11}\)
3. \(\frac{6}{2} . \frac{12}{12}\\=\frac{3}{1} . \frac{1}{1}\\=\frac{3.1}{1.1}\\=\frac{3}{1}= 3\)
4. \(\frac{11}{9} . \frac{8}{8}\\=\frac{11}{9} . \frac{1}{1}\\=\frac{11.1}{9.1}\\=\frac{11}{9}\)
5. \(\frac{11}{4} . \frac{9}{4}\\=\frac{11.9}{4.4}\\=\frac{99}{16}\)
6. \(\frac{9}{3} . \frac{4}{10}\\=\frac{3}{1} . \frac{2}{5}\\=\frac{3.2}{1.5}\\=\frac{6}{5}\)
7. \(\frac{9}{6} . \frac{12}{5}\\=\frac{3}{2} . \frac{12}{5}\\=\frac{3.12}{2.5}\\=\frac{36}{10}\\=\frac{18}{5}\)
8. \(\frac{11}{9} . \frac{12}{5}\\=\frac{11.12}{9.5}\\=\frac{132}{45}\\=\frac{44}{15}\)
9. \(\frac{5}{9} . \frac{11}{6}\\=\frac{5.11}{9.6}\\=\frac{55}{54}\)
10. \(\frac{9}{7} . \frac{6}{11}\\=\frac{9.6}{7.11}\\=\frac{54}{77}\)
11. \(\frac{9}{8} . \frac{5}{9}\\=\frac{9.5}{8.9}\\=\frac{45}{72}\\=\frac{5}{8}\)
12. \(\frac{5}{4} . \frac{6}{3}\\=\frac{5}{4} . \frac{2}{1}\\=\frac{5.2}{4.1}\\=\frac{10}{4}\\=\frac{5}{2}\)