Question

Tính giá trị biểu thức:

  5/2 + 1/4 x 1/8

Answer 1

\(\dfrac{5}{2}+\dfrac{1}{4}.\dfrac{1}{8}\)

\(=\dfrac{5}{2}+\dfrac{1}{32}=\dfrac{5.16+1}{32}=\dfrac{80+1}{32}=\dfrac{81}{32}\)

Answer 2

    \(\dfrac{5}{2}\)  + \(\dfrac{1}{4}\) x \(\dfrac{1}{8}\)

=  \(\dfrac{5}{2}\) + \(\dfrac{1}{32}\)

= \(\dfrac{80}{32}\) +  \(\dfrac{1}{32}\)

= \(\dfrac{81}{32}\)