Question

tìm giá trị biểu thức:20:6+40:12+60:18

cho mình xin cách làm

Answer 1

Ta có:

\(20:6+40:12+60:18\\ =\dfrac{20}{6}+\dfrac{40}{12}+\dfrac{60}{18}\\ =\dfrac{10}{3}+\dfrac{10}{3}+\dfrac{10}{3}\\ =\dfrac{10+10+10}{3}=\dfrac{30}{3}=10\)

Answer 2

ta có : (20 : 6 ) + (40 : 12 ) + (60 :18 ) = 10 

Answer 3

20 : 6 + 40 : 12 + 60 : 18

=> 20/6 + 40/12 + 60/18

=> 10/3 + 10/3 + 10/3

=> 10/3 x 3

=> 30/3

=> 10