Breuken optellen (reeks 1)

Tel de breuken op

\(\frac{10}{9}+\frac{7}{8}\)

\(\frac{10}{9}+\frac{7}{8}\\=\frac{80}{72}+\frac{63}{72}\\=\frac{80+63}{72}\\=\frac{143}{72}\)