Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{7}{8}-\frac{2}{3}\\=\frac{21}{24}-\frac{16}{24}\\=\frac{21-16}{24}\\=\frac{5}{24}\)
2. \(\frac{8}{11}-\frac{2}{9}\\=\frac{72}{99}-\frac{22}{99}\\=\frac{72-22}{99}\\=\frac{50}{99}\)
3. \(\frac{10}{7}-\frac{7}{10}\\=\frac{100}{70}-\frac{49}{70}\\=\frac{100-49}{70}\\=\frac{51}{70}\)
4. \(\frac{8}{3}-\frac{4}{3}\\=\frac{8-4}{3}\\=\frac{4}{3}\)
5. \(\frac{4}{3}-\frac{4}{11}\\=\frac{44}{33}-\frac{12}{33}\\=\frac{44-12}{33}\\=\frac{32}{33}\)
6. \(\frac{10}{3}-\frac{2}{3}\\=\frac{10-2}{3}\\=\frac{8}{3}\)
7. \(\frac{5}{11}-\frac{4}{11}\\=\frac{5-4}{11}\\=\frac{1}{11}\)
8. \(\frac{5}{2}-\frac{2}{5}\\=\frac{25}{10}-\frac{4}{10}\\=\frac{25-4}{10}\\=\frac{21}{10}\)
9. \(\frac{6}{11}-\frac{3}{8}\\=\frac{48}{88}-\frac{33}{88}\\=\frac{48-33}{88}\\=\frac{15}{88}\)
10. \(\frac{5}{2}-\frac{3}{4}\\=\frac{10}{4}-\frac{3}{4}\\=\frac{10-3}{4}\\=\frac{7}{4}\)
11. \(\frac{7}{8}-\frac{5}{7}\\=\frac{49}{56}-\frac{40}{56}\\=\frac{49-40}{56}\\=\frac{9}{56}\)
12. \(\frac{5}{11}-\frac{3}{7}\\=\frac{35}{77}-\frac{33}{77}\\=\frac{35-33}{77}\\=\frac{2}{77}\)