Breuken optellen (reeks 1)

Hoofdmenu Eentje per keer  🖨

Tel de breuken op

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

---

Tel de breuken op

Verbetersleutel

1. \(\frac{5}{2}+\frac{7}{3}\\=\frac{15}{6}+\frac{14}{6}\\=\frac{15+14}{6}\\=\frac{29}{6}\)
2. \(\frac{5}{7}+\frac{2}{3}\\=\frac{15}{21}+\frac{14}{21}\\=\frac{15+14}{21}\\=\frac{29}{21}\)
3. \(\frac{10}{3}+\frac{2}{5}\\=\frac{50}{15}+\frac{6}{15}\\=\frac{50+6}{15}\\=\frac{56}{15}\)
4. \(\frac{7}{3}+\frac{9}{7}\\=\frac{49}{21}+\frac{27}{21}\\=\frac{49+27}{21}\\=\frac{76}{21}\)
5. \(\frac{9}{4}+\frac{9}{5}\\=\frac{45}{20}+\frac{36}{20}\\=\frac{45+36}{20}\\=\frac{81}{20}\)
6. \(\frac{6}{5}+\frac{2}{7}\\=\frac{42}{35}+\frac{10}{35}\\=\frac{42+10}{35}\\=\frac{52}{35}\)
7. \(\frac{9}{4}+\frac{4}{5}\\=\frac{45}{20}+\frac{16}{20}\\=\frac{45+16}{20}\\=\frac{61}{20}\)
8. \(\frac{9}{4}+\frac{6}{5}\\=\frac{45}{20}+\frac{24}{20}\\=\frac{45+24}{20}\\=\frac{69}{20}\)
9. \(\frac{3}{2}+\frac{3}{2}\\=\frac{3+3}{2}\\=\frac{6}{2}\\=3\)
10. \(\frac{7}{8}+\frac{7}{11}\\=\frac{77}{88}+\frac{56}{88}\\=\frac{77+56}{88}\\=\frac{133}{88}\)
11. \(\frac{6}{7}+\frac{5}{6}\\=\frac{36}{42}+\frac{35}{42}\\=\frac{36+35}{42}\\=\frac{71}{42}\)
12. \(\frac{3}{10}+\frac{2}{11}\\=\frac{33}{110}+\frac{20}{110}\\=\frac{33+20}{110}\\=\frac{53}{110}\)