Breuken aftrekken (reeks 2)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{-4}{7}-\frac{11}{10}\\=\frac{-40}{70}-\frac{77}{70}\\=\frac{-40-77}{70}\\=\frac{-117}{70}\)
2. \(\frac{-18}{13}-\frac{8}{15}\\=\frac{-270}{195}-\frac{104}{195}\\=\frac{-270-104}{195}\\=\frac{-374}{195}\)
3. \(\frac{-9}{20}-\frac{17}{4}\\=\frac{-9-17}{20}\\=\frac{-26}{20}\\=\frac{-13}{10}\)
4. \(\frac{9}{17}-\frac{2}{9}\\=\frac{81}{153}-\frac{34}{153}\\=\frac{81-34}{153}\\=\frac{47}{153}\)
5. \(\frac{-17}{8}-\frac{9}{16}\\=\frac{-34}{16}-\frac{9}{16}\\=\frac{-34-9}{16}\\=\frac{-43}{16}\)
6. \(\frac{-6}{7}-\frac{4}{5}\\=\frac{-30}{35}-\frac{28}{35}\\=\frac{-30-28}{35}\\=\frac{-58}{35}\)
7. \(\frac{13}{11}-\frac{2}{15}\\=\frac{195}{165}-\frac{22}{165}\\=\frac{195-22}{165}\\=\frac{173}{165}\)
8. \(\frac{14}{9}-\frac{13}{17}\\=\frac{238}{153}-\frac{117}{153}\\=\frac{238-117}{153}\\=\frac{121}{153}\)
9. \(\frac{-3}{7}-\frac{13}{19}\\=\frac{-57}{133}-\frac{91}{133}\\=\frac{-57-91}{133}\\=\frac{-148}{133}\)
10. \(\frac{-11}{16}-\frac{6}{7}\\=\frac{-77}{112}-\frac{96}{112}\\=\frac{-77-96}{112}\\=\frac{-173}{112}\)
11. \(\frac{-17}{12}-\frac{6}{5}\\=\frac{-85}{60}-\frac{72}{60}\\=\frac{-85-72}{60}\\=\frac{-157}{60}\)
12. \(\frac{-13}{19}-\frac{9}{19}\\=\frac{-13-9}{19}\\=\frac{-22}{19}\)