Question

4/5.3/7-4/7: căn bậc 25/16 - (-1)

Answer 1

\(\dfrac{4}{5}.\dfrac{3}{7}-\dfrac{4}{7}:\sqrt{\dfrac{25}{16}}-\left(-1\right)\)=\(\dfrac{12}{35}-\dfrac{20}{28}+1\)

=\(\dfrac{12}{35}-\dfrac{5}{7}+1\)=\(\dfrac{12}{35}-\dfrac{25}{35}+\dfrac{35}{35}\)=\(\dfrac{22}{35}\)

Answer 2

=\(\dfrac{12}{35}\)-\(\dfrac{16}{35}+\dfrac{35}{35}\)=\(\dfrac{31}{35}\)