Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{6}{5}-\frac{2}{3}\\=\frac{18}{15}-\frac{10}{15}\\=\frac{18-10}{15}\\=\frac{8}{15}\)
2. \(\frac{3}{10}-\frac{2}{11}\\=\frac{33}{110}-\frac{20}{110}\\=\frac{33-20}{110}\\=\frac{13}{110}\)
3. \(\frac{5}{4}-\frac{5}{6}\\=\frac{15}{12}-\frac{10}{12}\\=\frac{15-10}{12}\\=\frac{5}{12}\)
4. \(\frac{9}{4}-\frac{5}{8}\\=\frac{18}{8}-\frac{5}{8}\\=\frac{18-5}{8}\\=\frac{13}{8}\)
5. \(\frac{4}{3}-\frac{5}{4}\\=\frac{16}{12}-\frac{15}{12}\\=\frac{16-15}{12}\\=\frac{1}{12}\)
6. \(\frac{4}{3}-\frac{8}{7}\\=\frac{28}{21}-\frac{24}{21}\\=\frac{28-24}{21}\\=\frac{4}{21}\)
7. \(\frac{8}{3}-\frac{5}{9}\\=\frac{24}{9}-\frac{5}{9}\\=\frac{24-5}{9}\\=\frac{19}{9}\)
8. \(\frac{5}{7}-\frac{3}{5}\\=\frac{25}{35}-\frac{21}{35}\\=\frac{25-21}{35}\\=\frac{4}{35}\)
9. \(\frac{7}{9}-\frac{4}{7}\\=\frac{49}{63}-\frac{36}{63}\\=\frac{49-36}{63}\\=\frac{13}{63}\)
10. \(\frac{9}{2}-\frac{7}{2}\\=\frac{9-7}{2}\\=\frac{2}{2}\\=1\)
11. \(\frac{5}{2}-\frac{5}{6}\\=\frac{15}{6}-\frac{5}{6}\\=\frac{15-5}{6}\\=\frac{10}{6}\\=\frac{5}{3}\)
12. \(\frac{3}{2}-\frac{2}{9}\\=\frac{27}{18}-\frac{4}{18}\\=\frac{27-4}{18}\\=\frac{23}{18}\)