Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{6}{5}-\frac{2}{7}\\=\frac{42}{35}-\frac{10}{35}\\=\frac{42-10}{35}\\=\frac{32}{35}\)
2. \(\frac{9}{10}-\frac{3}{10}\\=\frac{9-3}{10}\\=\frac{6}{10}\\=\frac{3}{5}\)
3. \(\frac{8}{3}-\frac{2}{11}\\=\frac{88}{33}-\frac{6}{33}\\=\frac{88-6}{33}\\=\frac{82}{33}\)
4. \(\frac{2}{5}-\frac{3}{10}\\=\frac{4}{10}-\frac{3}{10}\\=\frac{4-3}{10}\\=\frac{1}{10}\)
5. \(\frac{5}{4}-\frac{2}{3}\\=\frac{15}{12}-\frac{8}{12}\\=\frac{15-8}{12}\\=\frac{7}{12}\)
6. \(\frac{8}{7}-\frac{6}{11}\\=\frac{88}{77}-\frac{42}{77}\\=\frac{88-42}{77}\\=\frac{46}{77}\)
7. \(\frac{7}{4}-\frac{6}{7}\\=\frac{49}{28}-\frac{24}{28}\\=\frac{49-24}{28}\\=\frac{25}{28}\)
8. \(\frac{6}{5}-\frac{6}{5}\\=\frac{6-6}{5}\\=\frac{0}{5}\\=0\)
9. \(\frac{5}{7}-\frac{2}{11}\\=\frac{55}{77}-\frac{14}{77}\\=\frac{55-14}{77}\\=\frac{41}{77}\)
10. \(\frac{8}{5}-\frac{4}{5}\\=\frac{8-4}{5}\\=\frac{4}{5}\)
11. \(\frac{10}{7}-\frac{4}{7}\\=\frac{10-4}{7}\\=\frac{6}{7}\)
12. \(\frac{8}{5}-\frac{4}{9}\\=\frac{72}{45}-\frac{20}{45}\\=\frac{72-20}{45}\\=\frac{52}{45}\)