Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{10}{3}-\frac{6}{7}\\=\frac{70}{21}-\frac{18}{21}\\=\frac{70-18}{21}\\=\frac{52}{21}\)
2. \(\frac{5}{7}-\frac{2}{5}\\=\frac{25}{35}-\frac{14}{35}\\=\frac{25-14}{35}\\=\frac{11}{35}\)
3. \(\frac{5}{3}-\frac{2}{7}\\=\frac{35}{21}-\frac{6}{21}\\=\frac{35-6}{21}\\=\frac{29}{21}\)
4. \(\frac{9}{2}-\frac{6}{7}\\=\frac{63}{14}-\frac{12}{14}\\=\frac{63-12}{14}\\=\frac{51}{14}\)
5. \(\frac{6}{5}-\frac{4}{11}\\=\frac{66}{55}-\frac{20}{55}\\=\frac{66-20}{55}\\=\frac{46}{55}\)
6. \(\frac{5}{3}-\frac{2}{3}\\=\frac{5-2}{3}\\=\frac{3}{3}\\=1\)
7. \(\frac{7}{8}-\frac{9}{11}\\=\frac{77}{88}-\frac{72}{88}\\=\frac{77-72}{88}\\=\frac{5}{88}\)
8. \(\frac{3}{2}-\frac{5}{9}\\=\frac{27}{18}-\frac{10}{18}\\=\frac{27-10}{18}\\=\frac{17}{18}\)
9. \(\frac{2}{5}-\frac{2}{9}\\=\frac{18}{45}-\frac{10}{45}\\=\frac{18-10}{45}\\=\frac{8}{45}\)
10. \(\frac{10}{3}-\frac{6}{5}\\=\frac{50}{15}-\frac{18}{15}\\=\frac{50-18}{15}\\=\frac{32}{15}\)
11. \(\frac{7}{6}-\frac{4}{7}\\=\frac{49}{42}-\frac{24}{42}\\=\frac{49-24}{42}\\=\frac{25}{42}\)
12. \(\frac{7}{6}-\frac{5}{7}\\=\frac{49}{42}-\frac{30}{42}\\=\frac{49-30}{42}\\=\frac{19}{42}\)