Breuken optellen (reeks 1)

Hoofdmenu Eentje per keer  🖨

Tel de breuken op

1. \(\frac{4}{5}+\frac{2}{5}\)
2. \(\frac{8}{3}+\frac{3}{4}\)
3. \(\frac{7}{10}+\frac{4}{7}\)
4. \(\frac{8}{9}+\frac{5}{7}\)
5. \(\frac{5}{2}+\frac{9}{10}\)
6. \(\frac{5}{2}+\frac{9}{7}\)
7. \(\frac{9}{2}+\frac{5}{11}\)
8. \(\frac{8}{5}+\frac{6}{11}\)
9. \(\frac{6}{5}+\frac{5}{8}\)
10. \(\frac{8}{7}+\frac{3}{7}\)
11. \(\frac{9}{4}+\frac{2}{5}\)
12. \(\frac{3}{2}+\frac{3}{4}\)

---

Tel de breuken op

Verbetersleutel

1. \(\frac{4}{5}+\frac{2}{5}\\=\frac{4+2}{5}\\=\frac{6}{5}\)
2. \(\frac{8}{3}+\frac{3}{4}\\=\frac{32}{12}+\frac{9}{12}\\=\frac{32+9}{12}\\=\frac{41}{12}\)
3. \(\frac{7}{10}+\frac{4}{7}\\=\frac{49}{70}+\frac{40}{70}\\=\frac{49+40}{70}\\=\frac{89}{70}\)
4. \(\frac{8}{9}+\frac{5}{7}\\=\frac{56}{63}+\frac{45}{63}\\=\frac{56+45}{63}\\=\frac{101}{63}\)
5. \(\frac{5}{2}+\frac{9}{10}\\=\frac{25}{10}+\frac{9}{10}\\=\frac{25+9}{10}\\=\frac{34}{10}\\=\frac{17}{5}\)
6. \(\frac{5}{2}+\frac{9}{7}\\=\frac{35}{14}+\frac{18}{14}\\=\frac{35+18}{14}\\=\frac{53}{14}\)
7. \(\frac{9}{2}+\frac{5}{11}\\=\frac{99}{22}+\frac{10}{22}\\=\frac{99+10}{22}\\=\frac{109}{22}\)
8. \(\frac{8}{5}+\frac{6}{11}\\=\frac{88}{55}+\frac{30}{55}\\=\frac{88+30}{55}\\=\frac{118}{55}\)
9. \(\frac{6}{5}+\frac{5}{8}\\=\frac{48}{40}+\frac{25}{40}\\=\frac{48+25}{40}\\=\frac{73}{40}\)
10. \(\frac{8}{7}+\frac{3}{7}\\=\frac{8+3}{7}\\=\frac{11}{7}\)
11. \(\frac{9}{4}+\frac{2}{5}\\=\frac{45}{20}+\frac{8}{20}\\=\frac{45+8}{20}\\=\frac{53}{20}\)
12. \(\frac{3}{2}+\frac{3}{4}\\=\frac{6}{4}+\frac{3}{4}\\=\frac{6+3}{4}\\=\frac{9}{4}\)