Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{4}{3}-\frac{9}{10}\\=\frac{40}{30}-\frac{27}{30}\\=\frac{40-27}{30}\\=\frac{13}{30}\)
2. \(\frac{9}{7}-\frac{2}{7}\\=\frac{9-2}{7}\\=\frac{7}{7}\\=1\)
3. \(\frac{5}{2}-\frac{9}{4}\\=\frac{10}{4}-\frac{9}{4}\\=\frac{10-9}{4}\\=\frac{1}{4}\)
4. \(\frac{9}{4}-\frac{4}{5}\\=\frac{45}{20}-\frac{16}{20}\\=\frac{45-16}{20}\\=\frac{29}{20}\)
5. \(\frac{8}{5}-\frac{3}{2}\\=\frac{16}{10}-\frac{15}{10}\\=\frac{16-15}{10}\\=\frac{1}{10}\)
6. \(\frac{6}{5}-\frac{8}{11}\\=\frac{66}{55}-\frac{40}{55}\\=\frac{66-40}{55}\\=\frac{26}{55}\)
7. \(\frac{8}{7}-\frac{5}{9}\\=\frac{72}{63}-\frac{35}{63}\\=\frac{72-35}{63}\\=\frac{37}{63}\)
8. \(\frac{10}{7}-\frac{7}{11}\\=\frac{110}{77}-\frac{49}{77}\\=\frac{110-49}{77}\\=\frac{61}{77}\)
9. \(\frac{10}{7}-\frac{4}{5}\\=\frac{50}{35}-\frac{28}{35}\\=\frac{50-28}{35}\\=\frac{22}{35}\)
10. \(\frac{8}{3}-\frac{3}{2}\\=\frac{16}{6}-\frac{9}{6}\\=\frac{16-9}{6}\\=\frac{7}{6}\)
11. \(\frac{8}{5}-\frac{5}{7}\\=\frac{56}{35}-\frac{25}{35}\\=\frac{56-25}{35}\\=\frac{31}{35}\)
12. \(\frac{4}{9}-\frac{4}{11}\\=\frac{44}{99}-\frac{36}{99}\\=\frac{44-36}{99}\\=\frac{8}{99}\)