Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{10}{7}-\frac{2}{3}\\=\frac{30}{21}-\frac{14}{21}\\=\frac{30-14}{21}\\=\frac{16}{21}\)
2. \(\frac{3}{2}-\frac{10}{9}\\=\frac{27}{18}-\frac{20}{18}\\=\frac{27-20}{18}\\=\frac{7}{18}\)
3. \(\frac{8}{3}-\frac{10}{11}\\=\frac{88}{33}-\frac{30}{33}\\=\frac{88-30}{33}\\=\frac{58}{33}\)
4. \(\frac{8}{7}-\frac{10}{11}\\=\frac{88}{77}-\frac{70}{77}\\=\frac{88-70}{77}\\=\frac{18}{77}\)
5. \(\frac{10}{3}-\frac{5}{8}\\=\frac{80}{24}-\frac{15}{24}\\=\frac{80-15}{24}\\=\frac{65}{24}\)
6. \(\frac{9}{4}-\frac{8}{11}\\=\frac{99}{44}-\frac{32}{44}\\=\frac{99-32}{44}\\=\frac{67}{44}\)
7. \(\frac{7}{9}-\frac{8}{11}\\=\frac{77}{99}-\frac{72}{99}\\=\frac{77-72}{99}\\=\frac{5}{99}\)
8. \(\frac{9}{8}-\frac{10}{9}\\=\frac{81}{72}-\frac{80}{72}\\=\frac{81-80}{72}\\=\frac{1}{72}\)
9. \(\frac{10}{9}-\frac{3}{5}\\=\frac{50}{45}-\frac{27}{45}\\=\frac{50-27}{45}\\=\frac{23}{45}\)
10. \(\frac{10}{7}-\frac{2}{9}\\=\frac{90}{63}-\frac{14}{63}\\=\frac{90-14}{63}\\=\frac{76}{63}\)
11. \(\frac{7}{4}-\frac{6}{11}\\=\frac{77}{44}-\frac{24}{44}\\=\frac{77-24}{44}\\=\frac{53}{44}\)
12. \(\frac{8}{11}-\frac{4}{11}\\=\frac{8-4}{11}\\=\frac{4}{11}\)