Question

tinh nhanh 

a)27000:4:25

b)3/4:1/2+5/6:1/2

 

 

 

Answer 1

a) 270

b)

= (3/4 +5/6):1/2 = 19/6

Answer 2

a> 27000:4:25=270

b>3/4:1/2=6/4

5/6:1/2=10/6

6/4+10/6=76/24

mình ko bt có đúng ko nữa

Answer 3

a) 27000 : 4 : 25

= 27000 : ( 4 x 25 )

= 27000 : 100

= 270

b) 3/4 : 1/2 + 5/6 : 1/2

= ( 3/4 + 5/6 ) : 1/2

= 4/5 : 1/2

= 8/5

Nếu mình đúng thì