Breuken aftrekken (reeks 1)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{9}{4}-\frac{6}{5}\\=\frac{45}{20}-\frac{24}{20}\\=\frac{45-24}{20}\\=\frac{21}{20}\)
2. \(\frac{5}{7}-\frac{3}{10}\\=\frac{50}{70}-\frac{21}{70}\\=\frac{50-21}{70}\\=\frac{29}{70}\)
3. \(\frac{9}{8}-\frac{4}{7}\\=\frac{63}{56}-\frac{32}{56}\\=\frac{63-32}{56}\\=\frac{31}{56}\)
4. \(\frac{4}{3}-\frac{2}{7}\\=\frac{28}{21}-\frac{6}{21}\\=\frac{28-6}{21}\\=\frac{22}{21}\)
5. \(\frac{4}{5}-\frac{3}{7}\\=\frac{28}{35}-\frac{15}{35}\\=\frac{28-15}{35}\\=\frac{13}{35}\)
6. \(\frac{5}{6}-\frac{8}{11}\\=\frac{55}{66}-\frac{48}{66}\\=\frac{55-48}{66}\\=\frac{7}{66}\)
7. \(\frac{8}{7}-\frac{6}{11}\\=\frac{88}{77}-\frac{42}{77}\\=\frac{88-42}{77}\\=\frac{46}{77}\)
8. \(\frac{6}{5}-\frac{3}{4}\\=\frac{24}{20}-\frac{15}{20}\\=\frac{24-15}{20}\\=\frac{9}{20}\)
9. \(\frac{5}{7}-\frac{6}{11}\\=\frac{55}{77}-\frac{42}{77}\\=\frac{55-42}{77}\\=\frac{13}{77}\)
10. \(\frac{6}{11}-\frac{3}{8}\\=\frac{48}{88}-\frac{33}{88}\\=\frac{48-33}{88}\\=\frac{15}{88}\)
11. \(\frac{8}{3}-\frac{10}{7}\\=\frac{56}{21}-\frac{30}{21}\\=\frac{56-30}{21}\\=\frac{26}{21}\)
12. \(\frac{7}{11}-\frac{6}{11}\\=\frac{7-6}{11}\\=\frac{1}{11}\)