Breuken optellen (reeks 1)

Hoofdmenu Eentje per keer 

Tel de breuken op

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

Tel de breuken op

Verbetersleutel

  1. \(\frac{4}{7}+\frac{2}{9}\\=\frac{36}{63}+\frac{14}{63}\\=\frac{36+14}{63}\\=\frac{50}{63}\)
  2. \(\frac{6}{7}+\frac{5}{6}\\=\frac{36}{42}+\frac{35}{42}\\=\frac{36+35}{42}\\=\frac{71}{42}\)
  3. \(\frac{10}{3}+\frac{7}{9}\\=\frac{30}{9}+\frac{7}{9}\\=\frac{30+7}{9}\\=\frac{37}{9}\)
  4. \(\frac{8}{5}+\frac{5}{9}\\=\frac{72}{45}+\frac{25}{45}\\=\frac{72+25}{45}\\=\frac{97}{45}\)
  5. \(\frac{6}{7}+\frac{8}{11}\\=\frac{66}{77}+\frac{56}{77}\\=\frac{66+56}{77}\\=\frac{122}{77}\)
  6. \(\frac{7}{3}+\frac{3}{5}\\=\frac{35}{15}+\frac{9}{15}\\=\frac{35+9}{15}\\=\frac{44}{15}\)
  7. \(\frac{9}{2}+\frac{2}{9}\\=\frac{81}{18}+\frac{4}{18}\\=\frac{81+4}{18}\\=\frac{85}{18}\)
  8. \(\frac{9}{8}+\frac{7}{11}\\=\frac{99}{88}+\frac{56}{88}\\=\frac{99+56}{88}\\=\frac{155}{88}\)
  9. \(\frac{4}{5}+\frac{2}{7}\\=\frac{28}{35}+\frac{10}{35}\\=\frac{28+10}{35}\\=\frac{38}{35}\)
  10. \(\frac{10}{3}+\frac{8}{5}\\=\frac{50}{15}+\frac{24}{15}\\=\frac{50+24}{15}\\=\frac{74}{15}\)
  11. \(\frac{9}{5}+\frac{3}{11}\\=\frac{99}{55}+\frac{15}{55}\\=\frac{99+15}{55}\\=\frac{114}{55}\)
  12. \(\frac{10}{11}+\frac{3}{5}\\=\frac{50}{55}+\frac{33}{55}\\=\frac{50+33}{55}\\=\frac{83}{55}\)
Oefeningengenerator vanhoeckes.be/wiskunde 2021-12-02 02:19:06