Question

Tính giá trị biểu thức 

1/10 + 3/5 : 2/3

( 6/8 - 2/6 ) x 1/2

Answer 1

1/10 + 3/5 : 2/3

=1/10 + 9/10

=10/10

=1

\((\)6/8 -2/6\()\) x 1/2

=18/48 X 1/2

=3/7 x 1/2

=2/14

Answer 2

    \(\dfrac{1}{10}\) + \(\dfrac{3}{5}\):\(\dfrac{2}{3}\)

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

= \(\dfrac{1}{10}\) + \(\dfrac{9}{10}\)

= \(\dfrac{10}{10}\)

= 1 

( \(\dfrac{6}{8}\) - \(\dfrac{2}{6}\)) \(\times\) \(\dfrac{1}{2}\)

=( \(\dfrac{18}{24}\)  - \(\dfrac{8}{24}\)) \(\times\) \(\dfrac{1}{2}\)

= \(\dfrac{10}{24}\) \(\times\) \(\dfrac{1}{2}\)

= \(\dfrac{5}{24}\)