Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{5}{3}-\frac{2}{9}\\=\frac{15}{9}-\frac{2}{9}\\=\frac{15-2}{9}\\=\frac{13}{9}\)
2. \(\frac{2}{3}-\frac{2}{7}\\=\frac{14}{21}-\frac{6}{21}\\=\frac{14-6}{21}\\=\frac{8}{21}\)
3. \(\frac{2}{3}-\frac{5}{9}\\=\frac{6}{9}-\frac{5}{9}\\=\frac{6-5}{9}\\=\frac{1}{9}\)
4. \(\frac{6}{5}-\frac{10}{9}\\=\frac{54}{45}-\frac{50}{45}\\=\frac{54-50}{45}\\=\frac{4}{45}\)
5. \(\frac{7}{3}-\frac{3}{7}\\=\frac{49}{21}-\frac{9}{21}\\=\frac{49-9}{21}\\=\frac{40}{21}\)
6. \(\frac{9}{10}-\frac{8}{9}\\=\frac{81}{90}-\frac{80}{90}\\=\frac{81-80}{90}\\=\frac{1}{90}\)
7. \(\frac{9}{2}-\frac{10}{9}\\=\frac{81}{18}-\frac{20}{18}\\=\frac{81-20}{18}\\=\frac{61}{18}\)
8. \(\frac{2}{3}-\frac{2}{11}\\=\frac{22}{33}-\frac{6}{33}\\=\frac{22-6}{33}\\=\frac{16}{33}\)
9. \(\frac{10}{3}-\frac{6}{11}\\=\frac{110}{33}-\frac{18}{33}\\=\frac{110-18}{33}\\=\frac{92}{33}\)
10. \(\frac{7}{5}-\frac{9}{7}\\=\frac{49}{35}-\frac{45}{35}\\=\frac{49-45}{35}\\=\frac{4}{35}\)
11. \(\frac{8}{11}-\frac{4}{11}\\=\frac{8-4}{11}\\=\frac{4}{11}\)
12. \(\frac{7}{4}-\frac{3}{4}\\=\frac{7-3}{4}\\=\frac{4}{4}\\=1\)