Question

1/ Tìm giá trị biểu thức:

\(\dfrac{1}{5}\) + \(\dfrac{4}{5}\) x \(\dfrac{1}{2}\)

Answer 1

3/5

Answer 2

=\(\dfrac{1}{5}\)+ \(\dfrac{4.1}{5.2}\)

=\(\dfrac{1}{5}\)+ \(\dfrac{2}{5}\)

=\(\dfrac{3}{5}\)

dấu chấm là nhân nhé !!!

Answer 3

\(\dfrac{1}{5}+\dfrac{4}{5}\times\dfrac{1}{2}=\dfrac{1}{5}+\dfrac{4}{10}=\dfrac{2}{10}+\dfrac{4}{10}=\dfrac{6}{10}=\dfrac{3}{5}\)