\(\left(1,4123^3\right)\): x = \(\left(1,4123^2\right)\)
                                                                          X = \(\left(1,4123^3\right)\): \(\left(1.4123^2\right)\)

\(\left(1,4123^3\right)\): x = \(\left(1,4123^2\right)\)
                                                                          X = \(\left(1,4123^3\right)\): \(\left(1.4123^2\right)\)

a) 0,2 + 1\(\dfrac{3}{7}\)-\(\dfrac{6}{5}\)
= \(\dfrac{1}{5}+\dfrac{10}{7}-\dfrac{6}{5}\)

=\(\left(\dfrac{1}{5}-\dfrac{6}{5}\right)\) -\(\dfrac{10}{7}\)

= -1 - \(\dfrac{10}{7}\)

= -\(\dfrac{17}{7}\)

a) 0,2 + 1\(\dfrac{3}{7}\)-\(\dfrac{6}{5}\)
= \(\dfrac{1}{5}+\dfrac{10}{7}-\dfrac{6}{5}\)

=\(\left(\dfrac{1}{5}-\dfrac{6}{5}\right)\) -\(\dfrac{10}{7}\)

= -1 - \(\dfrac{10}{7}\)

= -\(\dfrac{17}{7}\)