Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{7}{2}-\frac{3}{10}\\=\frac{35}{10}-\frac{3}{10}\\=\frac{35-3}{10}\\=\frac{32}{10}\\=\frac{16}{5}\)
2. \(\frac{9}{2}-\frac{9}{10}\\=\frac{45}{10}-\frac{9}{10}\\=\frac{45-9}{10}\\=\frac{36}{10}\\=\frac{18}{5}\)
3. \(\frac{5}{2}-\frac{5}{9}\\=\frac{45}{18}-\frac{10}{18}\\=\frac{45-10}{18}\\=\frac{35}{18}\)
4. \(\frac{8}{11}-\frac{2}{7}\\=\frac{56}{77}-\frac{22}{77}\\=\frac{56-22}{77}\\=\frac{34}{77}\)
5. \(\frac{10}{3}-\frac{5}{6}\\=\frac{20}{6}-\frac{5}{6}\\=\frac{20-5}{6}\\=\frac{15}{6}\\=\frac{5}{2}\)
6. \(\frac{7}{6}-\frac{5}{6}\\=\frac{7-5}{6}\\=\frac{2}{6}\\=\frac{1}{3}\)
7. \(\frac{8}{9}-\frac{7}{8}\\=\frac{64}{72}-\frac{63}{72}\\=\frac{64-63}{72}\\=\frac{1}{72}\)
8. \(\frac{8}{9}-\frac{3}{8}\\=\frac{64}{72}-\frac{27}{72}\\=\frac{64-27}{72}\\=\frac{37}{72}\)
9. \(\frac{4}{3}-\frac{2}{9}\\=\frac{12}{9}-\frac{2}{9}\\=\frac{12-2}{9}\\=\frac{10}{9}\)
10. \(\frac{8}{3}-\frac{5}{11}\\=\frac{88}{33}-\frac{15}{33}\\=\frac{88-15}{33}\\=\frac{73}{33}\)
11. \(\frac{4}{3}-\frac{7}{8}\\=\frac{32}{24}-\frac{21}{24}\\=\frac{32-21}{24}\\=\frac{11}{24}\)
12. \(\frac{6}{5}-\frac{9}{8}\\=\frac{48}{40}-\frac{45}{40}\\=\frac{48-45}{40}\\=\frac{3}{40}\)