Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer 

Trek de breuken af

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

Trek de breuken af

Verbetersleutel

  1. \(\frac{7}{3}-\frac{6}{5}\\=\frac{35}{15}-\frac{18}{15}\\=\frac{35-18}{15}\\=\frac{17}{15}\)
  2. \(\frac{8}{5}-\frac{10}{11}\\=\frac{88}{55}-\frac{50}{55}\\=\frac{88-50}{55}\\=\frac{38}{55}\)
  3. \(\frac{10}{3}-\frac{10}{7}\\=\frac{70}{21}-\frac{30}{21}\\=\frac{70-30}{21}\\=\frac{40}{21}\)
  4. \(\frac{9}{8}-\frac{8}{11}\\=\frac{99}{88}-\frac{64}{88}\\=\frac{99-64}{88}\\=\frac{35}{88}\)
  5. \(\frac{6}{7}-\frac{2}{3}\\=\frac{18}{21}-\frac{14}{21}\\=\frac{18-14}{21}\\=\frac{4}{21}\)
  6. \(\frac{5}{3}-\frac{2}{3}\\=\frac{5-2}{3}\\=\frac{3}{3}\\=1\)
  7. \(\frac{6}{7}-\frac{7}{12}\\=\frac{72}{84}-\frac{49}{84}\\=\frac{72-49}{84}\\=\frac{23}{84}\)
  8. \(\frac{3}{2}-\frac{9}{7}\\=\frac{21}{14}-\frac{18}{14}\\=\frac{21-18}{14}\\=\frac{3}{14}\)
  9. \(\frac{7}{6}-\frac{2}{11}\\=\frac{77}{66}-\frac{12}{66}\\=\frac{77-12}{66}\\=\frac{65}{66}\)
  10. \(\frac{4}{3}-\frac{4}{9}\\=\frac{12}{9}-\frac{4}{9}\\=\frac{12-4}{9}\\=\frac{8}{9}\)
  11. \(\frac{3}{5}-\frac{3}{10}\\=\frac{6}{10}-\frac{3}{10}\\=\frac{6-3}{10}\\=\frac{3}{10}\)
  12. \(\frac{2}{3}-\frac{3}{8}\\=\frac{16}{24}-\frac{9}{24}\\=\frac{16-9}{24}\\=\frac{7}{24}\)
Oefeningengenerator vanhoeckes.be/wiskunde 2021-12-02 01:42:49