Răspuns :
Salut,
[tex] \frac{4}{9} + \frac{3}{10} \div \frac{6}{10} = \\ \\ \frac{4}{9} + \frac{3}{10} \times \frac{10}{6} = \\ \\ \frac{ ^{60)} 4}{ \: \: \: \: \: 9} + \frac{ ^{9)} 30}{ \: \: \: 60} = \\ \\ \frac{240}{540} + \frac{270}{540} = \\ \\ \frac{ ^{10)} 510}{ \: \: \: \: \: 540} = \frac{^{3)} 51}{ \: \: \: 54} = \boxed{\bold{ \frac{17}{18} }} [/tex]