Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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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. \(\frac{7}{2}-\frac{10}{7}\\=\frac{49}{14}-\frac{20}{14}\\=\frac{49-20}{14}\\=\frac{29}{14}\)
3. \(\frac{8}{5}-\frac{2}{9}\\=\frac{72}{45}-\frac{10}{45}\\=\frac{72-10}{45}\\=\frac{62}{45}\)
4. \(\frac{9}{2}-\frac{7}{10}\\=\frac{45}{10}-\frac{7}{10}\\=\frac{45-7}{10}\\=\frac{38}{10}\\=\frac{19}{5}\)
5. \(\frac{5}{3}-\frac{6}{11}\\=\frac{55}{33}-\frac{18}{33}\\=\frac{55-18}{33}\\=\frac{37}{33}\)
6. \(\frac{10}{11}-\frac{3}{5}\\=\frac{50}{55}-\frac{33}{55}\\=\frac{50-33}{55}\\=\frac{17}{55}\)
7. \(\frac{2}{5}-\frac{2}{5}\\=\frac{2-2}{5}\\=\frac{0}{5}\\=0\)
8. \(\frac{10}{7}-\frac{5}{7}\\=\frac{10-5}{7}\\=\frac{5}{7}\)
9. \(\frac{3}{4}-\frac{5}{11}\\=\frac{33}{44}-\frac{20}{44}\\=\frac{33-20}{44}\\=\frac{13}{44}\)
10. \(\frac{5}{4}-\frac{6}{7}\\=\frac{35}{28}-\frac{24}{28}\\=\frac{35-24}{28}\\=\frac{11}{28}\)
11. \(\frac{10}{3}-\frac{4}{9}\\=\frac{30}{9}-\frac{4}{9}\\=\frac{30-4}{9}\\=\frac{26}{9}\)
12. \(\frac{6}{7}-\frac{4}{9}\\=\frac{54}{63}-\frac{28}{63}\\=\frac{54-28}{63}\\=\frac{26}{63}\)