Breuken aftrekken (reeks 2)

Hoofdmenu Eentje per keer 

Trek de breuken af

  1. \(\frac{11}{2}-\frac{8}{17}\)
  2. \(\frac{8}{7}-\frac{7}{4}\)
  3. \(\frac{-3}{10}-\frac{16}{5}\)
  4. \(\frac{3}{5}-\frac{12}{17}\)
  5. \(\frac{12}{17}-\frac{20}{11}\)
  6. \(\frac{12}{11}-\frac{10}{17}\)
  7. \(\frac{-15}{11}-\frac{19}{6}\)
  8. \(\frac{-4}{9}-\frac{10}{7}\)
  9. \(\frac{-17}{9}-\frac{19}{20}\)
  10. \(\frac{-4}{3}-\frac{2}{17}\)
  11. \(\frac{-19}{17}-\frac{17}{12}\)
  12. \(\frac{-15}{14}-\frac{6}{13}\)

Trek de breuken af

Verbetersleutel

  1. \(\frac{11}{2}-\frac{8}{17}\\=\frac{187}{34}-\frac{16}{34}\\=\frac{187-16}{34}\\=\frac{171}{34}\)
  2. \(\frac{8}{7}-\frac{7}{4}\\=\frac{32}{28}-\frac{49}{28}\\=\frac{32-49}{28}\\=\frac{-17}{28}\)
  3. \(\frac{-3}{10}-\frac{16}{5}\\=\frac{-3-16}{10}\\=\frac{-19}{10}\)
  4. \(\frac{3}{5}-\frac{12}{17}\\=\frac{51}{85}-\frac{60}{85}\\=\frac{51-60}{85}\\=\frac{-9}{85}\)
  5. \(\frac{12}{17}-\frac{20}{11}\\=\frac{132}{187}-\frac{340}{187}\\=\frac{132-340}{187}\\=\frac{-208}{187}\)
  6. \(\frac{12}{11}-\frac{10}{17}\\=\frac{204}{187}-\frac{110}{187}\\=\frac{204-110}{187}\\=\frac{94}{187}\)
  7. \(\frac{-15}{11}-\frac{19}{6}\\=\frac{-90}{66}-\frac{209}{66}\\=\frac{-90-209}{66}\\=\frac{-299}{66}\)
  8. \(\frac{-4}{9}-\frac{10}{7}\\=\frac{-28}{63}-\frac{90}{63}\\=\frac{-28-90}{63}\\=\frac{-118}{63}\)
  9. \(\frac{-17}{9}-\frac{19}{20}\\=\frac{-340}{180}-\frac{171}{180}\\=\frac{-340-171}{180}\\=\frac{-511}{180}\)
  10. \(\frac{-4}{3}-\frac{2}{17}\\=\frac{-68}{51}-\frac{6}{51}\\=\frac{-68-6}{51}\\=\frac{-74}{51}\)
  11. \(\frac{-19}{17}-\frac{17}{12}\\=\frac{-228}{204}-\frac{289}{204}\\=\frac{-228-289}{204}\\=\frac{-517}{204}\)
  12. \(\frac{-15}{14}-\frac{6}{13}\\=\frac{-195}{182}-\frac{84}{182}\\=\frac{-195-84}{182}\\=\frac{-279}{182}\)
Oefeningengenerator vanhoeckes.be/wiskunde 2022-06-27 06:39:01