\(2,34\left(56\right)=2,34+\frac{1}{100}.56.\frac{1}{99}=\frac{11611}{4950}\)

\(13,25\left(3\right)=13,25+\frac{1}{100}.3.\frac{1}{9}=\frac{994}{75}\)

\(56,2\left(5\right)=56,2+\frac{1}{10}.5.\frac{1}{9}=\frac{5063}{90}\)

\(43,2\left(34\right)=43,2+\frac{1}{10}.34.\frac{1}{99}=\frac{21401}{495}\)