Question

Answer 1

\(-\dfrac{2 }{3}.\dfrac{9}{7}+\dfrac{3}{4}:2,5 \)
= \(-\dfrac{6}{7}+\dfrac{3}{10}\)
= \(-\dfrac{39}{70}\)
 

Answer 2

\(-\dfrac{2}{3}.\dfrac{9}{7}+\dfrac{3}{4}:2,5\)

\(=-\dfrac{2}{3}.\dfrac{9}{7}+\dfrac{3}{4}.\dfrac{2}{5}\)

\(=-\dfrac{6}{7}+\dfrac{3}{10}\)

\(=\dfrac{-39}{70}\)