Question

1 phần 5 : 1 phần 10 - 1 phần 3 nhân 6 phần 5 - 9 phần 4

Answer 1

\(\dfrac{1}{5}:\dfrac{1}{10}-\dfrac{1}{3}.\dfrac{6}{5}-\dfrac{9}{4}\)

=\(\dfrac{1}{5}.10-\dfrac{2}{5}-\dfrac{9}{4}\)

=2-\(\dfrac{53}{20}\)

=-\(\dfrac{13}{20}\)

 

Answer 2

Gõ latex cho dễ nhìn bn nhé

Answer 3

\(\dfrac{1}{5}:\dfrac{1}{10}-\dfrac{1}{3}.\dfrac{6}{5}-\dfrac{9}{4}=\dfrac{1}{5}.10-\dfrac{2}{5}-\dfrac{9}{4}=2-\dfrac{2}{5}-\dfrac{9}{4}=\dfrac{40}{20}-\dfrac{8}{20}-\dfrac{45}{20}=\dfrac{-13}{20}\)