Question

Tính giá trị của biểu thức:

a, 6 : 5/2 - 3/10

b, 4/6 : 4/3 + 5 : 4/3

Answer 1

21/10

17/4

Answer 2

a) 6/1x 2/5-3/10

= 12/5- 3/10

= 21/10

b) (4/6+5):4/3

= 17/3x 3/4

= 17/4

Answer 3

a) 6 : 5/2 - 3/10 = 12/5 - 3/10 = 21/10

b) 4/6 : 4/3 + 5 : 4/3 = 1/2 + 5 : 4/3 = 1/2 + 15 /4 = 17/4

Answer 4

a) \(6\div\dfrac{5}{2}-\dfrac{3}{10}\)

\(=\dfrac{12}{5}-\dfrac{3}{10}=\dfrac{21}{10}\)

b) \(\dfrac{4}{6}\div\dfrac{4}{3}+5\div\dfrac{4}{3}\)

\(=\dfrac{1}{2}+\dfrac{15}{4}=\dfrac{17}{4}\)

Answer 5

21/10

17/4