Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

---

Trek de breuken af

Verbetersleutel

1. \(\frac{9}{5}-\frac{6}{7}\\=\frac{63}{35}-\frac{30}{35}\\=\frac{63-30}{35}\\=\frac{33}{35}\)
2. \(\frac{5}{4}-\frac{5}{8}\\=\frac{10}{8}-\frac{5}{8}\\=\frac{10-5}{8}\\=\frac{5}{8}\)
3. \(\frac{3}{4}-\frac{2}{11}\\=\frac{33}{44}-\frac{8}{44}\\=\frac{33-8}{44}\\=\frac{25}{44}\)
4. \(\frac{8}{5}-\frac{5}{4}\\=\frac{32}{20}-\frac{25}{20}\\=\frac{32-25}{20}\\=\frac{7}{20}\)
5. \(\frac{9}{2}-\frac{2}{3}\\=\frac{27}{6}-\frac{4}{6}\\=\frac{27-4}{6}\\=\frac{23}{6}\)
6. \(\frac{7}{8}-\frac{2}{7}\\=\frac{49}{56}-\frac{16}{56}\\=\frac{49-16}{56}\\=\frac{33}{56}\)
7. \(\frac{8}{3}-\frac{9}{5}\\=\frac{40}{15}-\frac{27}{15}\\=\frac{40-27}{15}\\=\frac{13}{15}\)
8. \(\frac{5}{4}-\frac{2}{3}\\=\frac{15}{12}-\frac{8}{12}\\=\frac{15-8}{12}\\=\frac{7}{12}\)
9. \(\frac{3}{5}-\frac{3}{5}\\=\frac{3-3}{5}\\=\frac{0}{5}\\=0\)
10. \(\frac{2}{3}-\frac{4}{9}\\=\frac{6}{9}-\frac{4}{9}\\=\frac{6-4}{9}\\=\frac{2}{9}\)
11. \(\frac{9}{7}-\frac{3}{4}\\=\frac{36}{28}-\frac{21}{28}\\=\frac{36-21}{28}\\=\frac{15}{28}\)
12. \(\frac{6}{5}-\frac{6}{5}\\=\frac{6-6}{5}\\=\frac{0}{5}\\=0\)