Breuken aftrekken (reeks 2)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{-15}{16}-\frac{5}{6}\\=\frac{-45}{48}-\frac{40}{48}\\=\frac{-45-40}{48}\\=\frac{-85}{48}\)
2. \(\frac{9}{2}-\frac{18}{11}\\=\frac{99}{22}-\frac{36}{22}\\=\frac{99-36}{22}\\=\frac{63}{22}\)
3. \(\frac{-14}{19}-\frac{19}{6}\\=\frac{-84}{114}-\frac{361}{114}\\=\frac{-84-361}{114}\\=\frac{-445}{114}\)
4. \(\frac{6}{19}-\frac{17}{16}\\=\frac{96}{304}-\frac{323}{304}\\=\frac{96-323}{304}\\=\frac{-227}{304}\)
5. \(\frac{6}{5}-\frac{8}{9}\\=\frac{54}{45}-\frac{40}{45}\\=\frac{54-40}{45}\\=\frac{14}{45}\)
6. \(\frac{8}{15}-\frac{14}{5}\\=\frac{8-14}{15}\\=\frac{-6}{15}\\=\frac{-2}{5}\)
7. \(\frac{-8}{17}-\frac{2}{15}\\=\frac{-120}{255}-\frac{34}{255}\\=\frac{-120-34}{255}\\=\frac{-154}{255}\)
8. \(\frac{-11}{4}-\frac{15}{4}\\=\frac{-11-15}{4}\\=\frac{-26}{4}\\=\frac{-13}{2}\)
9. \(\frac{-9}{14}-\frac{3}{16}\\=\frac{-72}{112}-\frac{21}{112}\\=\frac{-72-21}{112}\\=\frac{-93}{112}\)
10. \(\frac{5}{11}-\frac{15}{17}\\=\frac{85}{187}-\frac{165}{187}\\=\frac{85-165}{187}\\=\frac{-80}{187}\)
11. \(\frac{-3}{16}-\frac{10}{3}\\=\frac{-9}{48}-\frac{160}{48}\\=\frac{-9-160}{48}\\=\frac{-169}{48}\)
12. \(\frac{18}{5}-\frac{9}{16}\\=\frac{288}{80}-\frac{45}{80}\\=\frac{288-45}{80}\\=\frac{243}{80}\)