Breuken optellen (reeks 1)

Hoofdmenu Eentje per keer  🖨

Tel de breuken op

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

---

Tel de breuken op

Verbetersleutel

1. \(\frac{9}{7}+\frac{9}{7}\\=\frac{9+9}{7}\\=\frac{18}{7}\)
2. \(\frac{7}{6}+\frac{6}{7}\\=\frac{49}{42}+\frac{36}{42}\\=\frac{49+36}{42}\\=\frac{85}{42}\)
3. \(\frac{8}{3}+\frac{10}{9}\\=\frac{24}{9}+\frac{10}{9}\\=\frac{24+10}{9}\\=\frac{34}{9}\)
4. \(\frac{5}{2}+\frac{7}{6}\\=\frac{15}{6}+\frac{7}{6}\\=\frac{15+7}{6}\\=\frac{22}{6}\\=\frac{11}{3}\)
5. \(\frac{9}{4}+\frac{6}{7}\\=\frac{63}{28}+\frac{24}{28}\\=\frac{63+24}{28}\\=\frac{87}{28}\)
6. \(\frac{8}{3}+\frac{2}{9}\\=\frac{24}{9}+\frac{2}{9}\\=\frac{24+2}{9}\\=\frac{26}{9}\)
7. \(\frac{4}{7}+\frac{6}{11}\\=\frac{44}{77}+\frac{42}{77}\\=\frac{44+42}{77}\\=\frac{86}{77}\)
8. \(\frac{2}{3}+\frac{4}{11}\\=\frac{22}{33}+\frac{12}{33}\\=\frac{22+12}{33}\\=\frac{34}{33}\)
9. \(\frac{5}{4}+\frac{9}{11}\\=\frac{55}{44}+\frac{36}{44}\\=\frac{55+36}{44}\\=\frac{91}{44}\)
10. \(\frac{7}{2}+\frac{10}{7}\\=\frac{49}{14}+\frac{20}{14}\\=\frac{49+20}{14}\\=\frac{69}{14}\)
11. \(\frac{8}{3}+\frac{8}{3}\\=\frac{8+8}{3}\\=\frac{16}{3}\)
12. \(\frac{5}{6}+\frac{5}{8}\\=\frac{20}{24}+\frac{15}{24}\\=\frac{20+15}{24}\\=\frac{35}{24}\)