Breuken aftrekken (reeks 2)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

1. \(\frac{-12}{13}-\frac{2}{13}\)
2. \(\frac{-8}{19}-\frac{7}{3}\)
3. \(\frac{-14}{3}-\frac{11}{6}\)
4. \(\frac{-20}{3}-\frac{4}{3}\)
5. \(\frac{-2}{3}-\frac{19}{16}\)
6. \(\frac{-16}{11}-\frac{8}{13}\)
7. \(\frac{-17}{3}-\frac{8}{15}\)
8. \(\frac{6}{11}-\frac{12}{11}\)
9. \(\frac{-11}{17}-\frac{14}{9}\)
10. \(\frac{5}{18}-\frac{20}{7}\)
11. \(\frac{-15}{16}-\frac{9}{5}\)
12. \(\frac{14}{19}-\frac{9}{7}\)

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Trek de breuken af

Verbetersleutel

1. \(\frac{-12}{13}-\frac{2}{13}\\=\frac{-12-2}{13}\\=\frac{-14}{13}\)
2. \(\frac{-8}{19}-\frac{7}{3}\\=\frac{-24}{57}-\frac{133}{57}\\=\frac{-24-133}{57}\\=\frac{-157}{57}\)
3. \(\frac{-14}{3}-\frac{11}{6}\\=\frac{-28}{6}-\frac{11}{6}\\=\frac{-28-11}{6}\\=\frac{-39}{6}\\=\frac{-13}{2}\)
4. \(\frac{-20}{3}-\frac{4}{3}\\=\frac{-20-4}{3}\\=\frac{-24}{3}\\=\frac{-8}{1}\)
5. \(\frac{-2}{3}-\frac{19}{16}\\=\frac{-32}{48}-\frac{57}{48}\\=\frac{-32-57}{48}\\=\frac{-89}{48}\)
6. \(\frac{-16}{11}-\frac{8}{13}\\=\frac{-208}{143}-\frac{88}{143}\\=\frac{-208-88}{143}\\=\frac{-296}{143}\)
7. \(\frac{-17}{3}-\frac{8}{15}\\=\frac{-85}{15}-\frac{8}{15}\\=\frac{-85-8}{15}\\=\frac{-93}{15}\\=\frac{-31}{5}\)
8. \(\frac{6}{11}-\frac{12}{11}\\=\frac{6-12}{11}\\=\frac{-6}{11}\)
9. \(\frac{-11}{17}-\frac{14}{9}\\=\frac{-99}{153}-\frac{238}{153}\\=\frac{-99-238}{153}\\=\frac{-337}{153}\)
10. \(\frac{5}{18}-\frac{20}{7}\\=\frac{35}{126}-\frac{360}{126}\\=\frac{35-360}{126}\\=\frac{-325}{126}\)
11. \(\frac{-15}{16}-\frac{9}{5}\\=\frac{-75}{80}-\frac{144}{80}\\=\frac{-75-144}{80}\\=\frac{-219}{80}\)
12. \(\frac{14}{19}-\frac{9}{7}\\=\frac{98}{133}-\frac{171}{133}\\=\frac{98-171}{133}\\=\frac{-73}{133}\)