Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{6}{5}-\frac{8}{7}\\=\frac{42}{35}-\frac{40}{35}\\=\frac{42-40}{35}\\=\frac{2}{35}\)
2. \(\frac{3}{2}-\frac{8}{7}\\=\frac{21}{14}-\frac{16}{14}\\=\frac{21-16}{14}\\=\frac{5}{14}\)
3. \(\frac{8}{3}-\frac{9}{5}\\=\frac{40}{15}-\frac{27}{15}\\=\frac{40-27}{15}\\=\frac{13}{15}\)
4. \(\frac{10}{7}-\frac{3}{8}\\=\frac{80}{56}-\frac{21}{56}\\=\frac{80-21}{56}\\=\frac{59}{56}\)
5. \(\frac{3}{5}-\frac{2}{5}\\=\frac{3-2}{5}\\=\frac{1}{5}\)
6. \(\frac{5}{3}-\frac{3}{2}\\=\frac{10}{6}-\frac{9}{6}\\=\frac{10-9}{6}\\=\frac{1}{6}\)
7. \(\frac{10}{11}-\frac{4}{11}\\=\frac{10-4}{11}\\=\frac{6}{11}\)
8. \(\frac{9}{2}-\frac{2}{3}\\=\frac{27}{6}-\frac{4}{6}\\=\frac{27-4}{6}\\=\frac{23}{6}\)
9. \(\frac{6}{7}-\frac{7}{9}\\=\frac{54}{63}-\frac{49}{63}\\=\frac{54-49}{63}\\=\frac{5}{63}\)
10. \(\frac{4}{3}-\frac{6}{11}\\=\frac{44}{33}-\frac{18}{33}\\=\frac{44-18}{33}\\=\frac{26}{33}\)
11. \(\frac{6}{7}-\frac{2}{3}\\=\frac{18}{21}-\frac{14}{21}\\=\frac{18-14}{21}\\=\frac{4}{21}\)
12. \(\frac{10}{9}-\frac{2}{3}\\=\frac{10-2}{9}\\=\frac{8}{9}\)