Breuken aftrekken (reeks 2)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

1. \(\frac{-8}{9}-\frac{2}{15}\)
2. \(\frac{12}{5}-\frac{5}{7}\)
3. \(\frac{19}{15}-\frac{8}{15}\)
4. \(\frac{-12}{5}-\frac{20}{19}\)
5. \(\frac{2}{5}-\frac{11}{10}\)
6. \(\frac{11}{2}-\frac{13}{9}\)
7. \(\frac{-4}{13}-\frac{9}{16}\)
8. \(\frac{14}{11}-\frac{10}{3}\)
9. \(\frac{-4}{5}-\frac{7}{17}\)
10. \(\frac{8}{7}-\frac{12}{11}\)
11. \(\frac{-11}{3}-\frac{19}{3}\)
12. \(\frac{-6}{7}-\frac{18}{17}\)

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Trek de breuken af

Verbetersleutel

1. \(\frac{-8}{9}-\frac{2}{15}\\=\frac{-40}{45}-\frac{6}{45}\\=\frac{-40-6}{45}\\=\frac{-46}{45}\)
2. \(\frac{12}{5}-\frac{5}{7}\\=\frac{84}{35}-\frac{25}{35}\\=\frac{84-25}{35}\\=\frac{59}{35}\)
3. \(\frac{19}{15}-\frac{8}{15}\\=\frac{19-8}{15}\\=\frac{11}{15}\)
4. \(\frac{-12}{5}-\frac{20}{19}\\=\frac{-228}{95}-\frac{100}{95}\\=\frac{-228-100}{95}\\=\frac{-328}{95}\)
5. \(\frac{2}{5}-\frac{11}{10}\\=\frac{4}{10}-\frac{11}{10}\\=\frac{4-11}{10}\\=\frac{-7}{10}\)
6. \(\frac{11}{2}-\frac{13}{9}\\=\frac{99}{18}-\frac{26}{18}\\=\frac{99-26}{18}\\=\frac{73}{18}\)
7. \(\frac{-4}{13}-\frac{9}{16}\\=\frac{-64}{208}-\frac{117}{208}\\=\frac{-64-117}{208}\\=\frac{-181}{208}\)
8. \(\frac{14}{11}-\frac{10}{3}\\=\frac{42}{33}-\frac{110}{33}\\=\frac{42-110}{33}\\=\frac{-68}{33}\)
9. \(\frac{-4}{5}-\frac{7}{17}\\=\frac{-68}{85}-\frac{35}{85}\\=\frac{-68-35}{85}\\=\frac{-103}{85}\)
10. \(\frac{8}{7}-\frac{12}{11}\\=\frac{88}{77}-\frac{84}{77}\\=\frac{88-84}{77}\\=\frac{4}{77}\)
11. \(\frac{-11}{3}-\frac{19}{3}\\=\frac{-11-19}{3}\\=\frac{-30}{3}\\=\frac{-10}{1}\)
12. \(\frac{-6}{7}-\frac{18}{17}\\=\frac{-102}{119}-\frac{126}{119}\\=\frac{-102-126}{119}\\=\frac{-228}{119}\)