Question

tính già trị biểu ....     7/3 + 2/9 : 1/5

Answer 1

24/9

Answer 2

24/9

Answer 3

\(\dfrac{7}{3}+\dfrac{2}{9}:\dfrac{1}{5}=\dfrac{7}{3}+\dfrac{2}{9}\times\dfrac{5}{1}=\dfrac{7}{3}+\dfrac{10}{9}=\dfrac{21}{9}+\dfrac{10}{9}=\dfrac{31}{9}\)

Answer 4

\(7/3 + 2/9 : 1/5= 7/3 + 2/9 x 5 = 7/3 + 10/9 = 21/9 + 10/9 = 31/9\)

Answer 5

\(\dfrac{7}{3}+\dfrac{2}{9}\times5=\dfrac{7}{3}+\dfrac{10}{9}=\dfrac{21}{3}+\dfrac{10}{9}=\dfrac{31}{9}\)

Answer 6

24/9