Question

Care este inversul numarului 7/15,19/11,1intreg 1/5,3 intreg 4/3
Repede va rog

Answer 1

inversul este intotdeauna =1

Answer 2

$\it \dfrac{7}{15} \Rightarrow \dfrac{15}{7}\ \ inversul\\ \\ \\ \dfrac{19}{11} \Rightarrow \dfrac{11}{19}\ \ inversul\\ \\ \\ 1\dfrac{1}{5}=\dfrac{6}{5};\ \ \ \dfrac{6}{5} \Rightarrow \dfrac{5}{6}\ \ inversul$