Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{10}{11}-\frac{4}{11}\\=\frac{10-4}{11}\\=\frac{6}{11}\)
2. \(\frac{3}{2}-\frac{7}{8}\\=\frac{12}{8}-\frac{7}{8}\\=\frac{12-7}{8}\\=\frac{5}{8}\)
3. \(\frac{8}{9}-\frac{5}{11}\\=\frac{88}{99}-\frac{45}{99}\\=\frac{88-45}{99}\\=\frac{43}{99}\)
4. \(\frac{6}{11}-\frac{4}{11}\\=\frac{6-4}{11}\\=\frac{2}{11}\)
5. \(\frac{8}{5}-\frac{5}{4}\\=\frac{32}{20}-\frac{25}{20}\\=\frac{32-25}{20}\\=\frac{7}{20}\)
6. \(\frac{7}{5}-\frac{4}{7}\\=\frac{49}{35}-\frac{20}{35}\\=\frac{49-20}{35}\\=\frac{29}{35}\)
7. \(\frac{7}{10}-\frac{5}{9}\\=\frac{63}{90}-\frac{50}{90}\\=\frac{63-50}{90}\\=\frac{13}{90}\)
8. \(\frac{9}{10}-\frac{3}{4}\\=\frac{18}{20}-\frac{15}{20}\\=\frac{18-15}{20}\\=\frac{3}{20}\)
9. \(\frac{5}{2}-\frac{8}{9}\\=\frac{45}{18}-\frac{16}{18}\\=\frac{45-16}{18}\\=\frac{29}{18}\)
10. \(\frac{7}{2}-\frac{3}{7}\\=\frac{49}{14}-\frac{6}{14}\\=\frac{49-6}{14}\\=\frac{43}{14}\)
11. \(\frac{7}{4}-\frac{3}{10}\\=\frac{35}{20}-\frac{6}{20}\\=\frac{35-6}{20}\\=\frac{29}{20}\)
12. \(\frac{10}{9}-\frac{7}{8}\\=\frac{80}{72}-\frac{63}{72}\\=\frac{80-63}{72}\\=\frac{17}{72}\)