Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{6}{7}-\frac{4}{5}\\=\frac{30}{35}-\frac{28}{35}\\=\frac{30-28}{35}\\=\frac{2}{35}\)
2. \(\frac{10}{3}-\frac{10}{9}\\=\frac{30}{9}-\frac{10}{9}\\=\frac{30-10}{9}\\=\frac{20}{9}\)
3. \(\frac{8}{5}-\frac{3}{2}\\=\frac{16}{10}-\frac{15}{10}\\=\frac{16-15}{10}\\=\frac{1}{10}\)
4. \(\frac{7}{5}-\frac{8}{11}\\=\frac{77}{55}-\frac{40}{55}\\=\frac{77-40}{55}\\=\frac{37}{55}\)
5. \(\frac{6}{7}-\frac{2}{5}\\=\frac{30}{35}-\frac{14}{35}\\=\frac{30-14}{35}\\=\frac{16}{35}\)
6. \(\frac{4}{5}-\frac{4}{7}\\=\frac{28}{35}-\frac{20}{35}\\=\frac{28-20}{35}\\=\frac{8}{35}\)
7. \(\frac{10}{9}-\frac{4}{11}\\=\frac{110}{99}-\frac{36}{99}\\=\frac{110-36}{99}\\=\frac{74}{99}\)
8. \(\frac{8}{5}-\frac{3}{8}\\=\frac{64}{40}-\frac{15}{40}\\=\frac{64-15}{40}\\=\frac{49}{40}\)
9. \(\frac{7}{11}-\frac{4}{7}\\=\frac{49}{77}-\frac{44}{77}\\=\frac{49-44}{77}\\=\frac{5}{77}\)
10. \(\frac{8}{5}-\frac{10}{11}\\=\frac{88}{55}-\frac{50}{55}\\=\frac{88-50}{55}\\=\frac{38}{55}\)
11. \(\frac{5}{4}-\frac{10}{11}\\=\frac{55}{44}-\frac{40}{44}\\=\frac{55-40}{44}\\=\frac{15}{44}\)
12. \(\frac{6}{7}-\frac{3}{8}\\=\frac{48}{56}-\frac{21}{56}\\=\frac{48-21}{56}\\=\frac{27}{56}\)