Breuken verm. (reeks 1)

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Vermenigvuldig de breuken

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

Vermenigvuldig de breuken

Verbetersleutel

  1. \(\frac{12}{11} . \frac{11}{2}\\=\frac{12.11}{11.2}\\=\frac{132}{22}\\=\frac{6}{1}= 6\)
  2. \(\frac{9}{4} . \frac{6}{8}\\=\frac{9}{4} . \frac{3}{4}\\=\frac{9.3}{4.4}\\=\frac{27}{16}\)
  3. \(\frac{12}{11} . \frac{7}{2}\\=\frac{12.7}{11.2}\\=\frac{84}{22}\\=\frac{42}{11}\)
  4. \(\frac{8}{4} . \frac{6}{4}\\=\frac{2}{1} . \frac{3}{2}\\=\frac{2.3}{1.2}\\=\frac{6}{2}\\=\frac{3}{1}= 3\)
  5. \(\frac{3}{12} . \frac{4}{10}\\=\frac{1}{4} . \frac{2}{5}\\=\frac{1.2}{4.5}\\=\frac{2}{20}\\=\frac{1}{10}\)
  6. \(\frac{9}{6} . \frac{4}{2}\\=\frac{3}{2} . \frac{2}{1}\\=\frac{3.2}{2.1}\\=\frac{6}{2}\\=\frac{3}{1}= 3\)
  7. \(\frac{8}{11} . \frac{6}{6}\\=\frac{8}{11} . \frac{1}{1}\\=\frac{8.1}{11.1}\\=\frac{8}{11}\)
  8. \(\frac{5}{3} . \frac{3}{9}\\=\frac{5}{3} . \frac{1}{3}\\=\frac{5.1}{3.3}\\=\frac{5}{9}\)
  9. \(\frac{6}{2} . \frac{3}{2}\\=\frac{3}{1} . \frac{3}{2}\\=\frac{3.3}{1.2}\\=\frac{9}{2}\)
  10. \(\frac{10}{9} . \frac{11}{8}\\=\frac{10.11}{9.8}\\=\frac{110}{72}\\=\frac{55}{36}\)
  11. \(\frac{2}{4} . \frac{7}{7}\\=\frac{1}{2} . \frac{1}{1}\\=\frac{1.1}{2.1}\\=\frac{1}{2}\)
  12. \(\frac{4}{6} . \frac{7}{11}\\=\frac{2}{3} . \frac{7}{11}\\=\frac{2.7}{3.11}\\=\frac{14}{33}\)
Oefeningengenerator vanhoeckes.be/wiskunde 2021-12-02 02:30:37