Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{7}{8}-\frac{4}{11}\\=\frac{77}{88}-\frac{32}{88}\\=\frac{77-32}{88}\\=\frac{45}{88}\)
2. \(\frac{8}{3}-\frac{6}{7}\\=\frac{56}{21}-\frac{18}{21}\\=\frac{56-18}{21}\\=\frac{38}{21}\)
3. \(\frac{8}{3}-\frac{7}{5}\\=\frac{40}{15}-\frac{21}{15}\\=\frac{40-21}{15}\\=\frac{19}{15}\)
4. \(\frac{10}{3}-\frac{8}{9}\\=\frac{30}{9}-\frac{8}{9}\\=\frac{30-8}{9}\\=\frac{22}{9}\)
5. \(\frac{4}{3}-\frac{4}{3}\\=\frac{4-4}{3}\\=\frac{0}{3}\\=0\)
6. \(\frac{5}{2}-\frac{8}{5}\\=\frac{25}{10}-\frac{16}{10}\\=\frac{25-16}{10}\\=\frac{9}{10}\)
7. \(\frac{8}{3}-\frac{3}{8}\\=\frac{64}{24}-\frac{9}{24}\\=\frac{64-9}{24}\\=\frac{55}{24}\)
8. \(\frac{10}{7}-\frac{3}{7}\\=\frac{10-3}{7}\\=\frac{7}{7}\\=1\)
9. \(\frac{10}{3}-\frac{2}{9}\\=\frac{30}{9}-\frac{2}{9}\\=\frac{30-2}{9}\\=\frac{28}{9}\)
10. \(\frac{7}{2}-\frac{2}{5}\\=\frac{35}{10}-\frac{4}{10}\\=\frac{35-4}{10}\\=\frac{31}{10}\)
11. \(\frac{8}{3}-\frac{7}{8}\\=\frac{64}{24}-\frac{21}{24}\\=\frac{64-21}{24}\\=\frac{43}{24}\)
12. \(\frac{9}{7}-\frac{3}{7}\\=\frac{9-3}{7}\\=\frac{6}{7}\)