Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{7}{2}-\frac{8}{3}\\=\frac{21}{6}-\frac{16}{6}\\=\frac{21-16}{6}\\=\frac{5}{6}\)
2. \(\frac{9}{10}-\frac{4}{7}\\=\frac{63}{70}-\frac{40}{70}\\=\frac{63-40}{70}\\=\frac{23}{70}\)
3. \(\frac{3}{8}-\frac{2}{11}\\=\frac{33}{88}-\frac{16}{88}\\=\frac{33-16}{88}\\=\frac{17}{88}\)
4. \(\frac{6}{5}-\frac{8}{7}\\=\frac{42}{35}-\frac{40}{35}\\=\frac{42-40}{35}\\=\frac{2}{35}\)
5. \(\frac{9}{4}-\frac{5}{11}\\=\frac{99}{44}-\frac{20}{44}\\=\frac{99-20}{44}\\=\frac{79}{44}\)
6. \(\frac{7}{2}-\frac{6}{11}\\=\frac{77}{22}-\frac{12}{22}\\=\frac{77-12}{22}\\=\frac{65}{22}\)
7. \(\frac{4}{9}-\frac{3}{10}\\=\frac{40}{90}-\frac{27}{90}\\=\frac{40-27}{90}\\=\frac{13}{90}\)
8. \(\frac{8}{7}-\frac{2}{9}\\=\frac{72}{63}-\frac{14}{63}\\=\frac{72-14}{63}\\=\frac{58}{63}\)
9. \(\frac{10}{3}-\frac{6}{5}\\=\frac{50}{15}-\frac{18}{15}\\=\frac{50-18}{15}\\=\frac{32}{15}\)
10. \(\frac{4}{7}-\frac{3}{11}\\=\frac{44}{77}-\frac{21}{77}\\=\frac{44-21}{77}\\=\frac{23}{77}\)
11. \(\frac{7}{3}-\frac{3}{11}\\=\frac{77}{33}-\frac{9}{33}\\=\frac{77-9}{33}\\=\frac{68}{33}\)
12. \(\frac{10}{3}-\frac{3}{5}\\=\frac{50}{15}-\frac{9}{15}\\=\frac{50-9}{15}\\=\frac{41}{15}\)