Breuken optellen (reeks 2)

Hoofdmenu Eentje per keer 

Tel de breuken op

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

Tel de breuken op

Verbetersleutel

  1. \(\frac{5}{16}+\frac{13}{17}\\=\frac{85}{272}+\frac{208}{272}\\=\frac{85+208}{272}\\=\frac{293}{272}\)
  2. \(\frac{15}{19}+\frac{18}{5}\\=\frac{75}{95}+\frac{342}{95}\\=\frac{75+342}{95}\\=\frac{417}{95}\)
  3. \(\frac{-4}{7}+\frac{11}{10}\\=\frac{-40}{70}+\frac{77}{70}\\=\frac{-40+77}{70}\\=\frac{37}{70}\)
  4. \(\frac{-14}{11}+\frac{2}{9}\\=\frac{-126}{99}+\frac{22}{99}\\=\frac{-126+22}{99}\\=\frac{-104}{99}\\=\frac{104}{-99}\)
  5. \(\frac{10}{19}+\frac{12}{13}\\=\frac{130}{247}+\frac{228}{247}\\=\frac{130+228}{247}\\=\frac{358}{247}\)
  6. \(\frac{-14}{17}+\frac{16}{7}\\=\frac{-98}{119}+\frac{272}{119}\\=\frac{-98+272}{119}\\=\frac{174}{119}\)
  7. \(\frac{19}{8}+\frac{3}{2}\\=\frac{19+3}{8}\\=\frac{22}{8}\\=\frac{11}{4}\)
  8. \(\frac{-18}{13}+\frac{9}{2}\\=\frac{-36}{26}+\frac{117}{26}\\=\frac{-36+117}{26}\\=\frac{81}{26}\)
  9. \(\frac{-4}{13}+\frac{5}{3}\\=\frac{-12}{39}+\frac{65}{39}\\=\frac{-12+65}{39}\\=\frac{53}{39}\)
  10. \(\frac{11}{13}+\frac{4}{5}\\=\frac{55}{65}+\frac{52}{65}\\=\frac{55+52}{65}\\=\frac{107}{65}\)
  11. \(\frac{-3}{17}+\frac{7}{17}\\=\frac{-3+7}{17}\\=\frac{4}{17}\)
  12. \(\frac{1}{12}+\frac{7}{16}\\=\frac{4}{48}+\frac{21}{48}\\=\frac{4+21}{48}\\=\frac{25}{48}\)
Oefeningengenerator vanhoeckes.be/wiskunde 2024-03-28 22:51:21