Question

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Answer 1

\(=\dfrac{7}{10}.\dfrac{8}{3}.20.\dfrac{3}{8}.\dfrac{5}{28}=\dfrac{5}{2}\)

Answer 2

h,=\(\dfrac{7}{10}.\dfrac{8}{3}.20.\dfrac{3}{8}.\dfrac{5}{28}\)

=\(\left(\dfrac{7}{10}.20\right).\left(\dfrac{8}{3}.\dfrac{3}{8}\right).\dfrac{5}{28}\)

=\(14.1.\dfrac{5}{28}\)

=\(14.\dfrac{5}{28}\)

=\(\dfrac{5}{2}\)

Answer 3

\(0,7.2\dfrac{2}{3}.20.0,375.\dfrac{5}{28}\) 

\(=\dfrac{7}{10}.\dfrac{8}{3}.20.\dfrac{3}{8}.\dfrac{5}{28}\) 

\(=\left(\dfrac{7}{10}.20.\dfrac{5}{28}\right).\left(\dfrac{8}{3}.\dfrac{3}{8}\right)\) 

\(=\dfrac{5}{2}.1\) 

\(=\dfrac{5}{2}\)