Breuken aftrekken (reeks 2)

Hoofdmenu Eentje per keer  🖨

Trek de breuken af

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

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Trek de breuken af

Verbetersleutel

1. \(\frac{-16}{5}-\frac{10}{11}\\=\frac{-176}{55}-\frac{50}{55}\\=\frac{-176-50}{55}\\=\frac{-226}{55}\)
2. \(\frac{14}{19}-\frac{2}{3}\\=\frac{42}{57}-\frac{38}{57}\\=\frac{42-38}{57}\\=\frac{4}{57}\)
3. \(\frac{20}{9}-\frac{10}{9}\\=\frac{20-10}{9}\\=\frac{10}{9}\)
4. \(\frac{-11}{2}-\frac{18}{17}\\=\frac{-187}{34}-\frac{36}{34}\\=\frac{-187-36}{34}\\=\frac{-223}{34}\)
5. \(\frac{-6}{5}-\frac{8}{15}\\=\frac{-18}{15}-\frac{8}{15}\\=\frac{-18-8}{15}\\=\frac{-26}{15}\)
6. \(\frac{3}{16}-\frac{15}{11}\\=\frac{33}{176}-\frac{240}{176}\\=\frac{33-240}{176}\\=\frac{-207}{176}\)
7. \(\frac{-4}{19}-\frac{3}{13}\\=\frac{-52}{247}-\frac{57}{247}\\=\frac{-52-57}{247}\\=\frac{-109}{247}\)
8. \(\frac{-17}{14}-\frac{13}{16}\\=\frac{-136}{112}-\frac{91}{112}\\=\frac{-136-91}{112}\\=\frac{-227}{112}\)
9. \(\frac{-2}{15}-\frac{4}{5}\\=\frac{-2-4}{15}\\=\frac{-6}{15}\\=\frac{-2}{5}\)
10. \(\frac{-17}{7}-\frac{4}{5}\\=\frac{-85}{35}-\frac{28}{35}\\=\frac{-85-28}{35}\\=\frac{-113}{35}\)
11. \(\frac{-10}{11}-\frac{3}{10}\\=\frac{-100}{110}-\frac{33}{110}\\=\frac{-100-33}{110}\\=\frac{-133}{110}\)
12. \(\frac{-20}{11}-\frac{12}{17}\\=\frac{-340}{187}-\frac{132}{187}\\=\frac{-340-132}{187}\\=\frac{-472}{187}\)