12/25

3623/50000

64

mik làm đầu tiên

k mik nhé

4 : 23  x 3

= 4/23  x 3

= 12/23

6 : 1 + ? = 70

6 + ? = 70

? = 70 - 6

? = 64

tk mk nha

mà vô '' khách sạn '' làm gì thế bạn ??????

\(A=\frac{\text{9999999999}}{2}-\frac{\text{9999999999}}{3}-\frac{\text{9999999999}}{6}\)

\(A=\text{9999999999}\left(\frac{1}{2}-\frac{1}{3}-\frac{1}{6}\right)\)

\(A=\text{9999999999}.0\)

\(A=0\)

Vậy A = B 

A = 0 nhé bạn tôi thề là đúng luôn

bạn ko cần cảm ơn đâu cho 1 k là ok

55555+5+55555+55+5555+5+55555+5555555555555555+5555+555555=555555556.10^15

kq của phép tính trên = 5555555556288950.

5.555555556\(\times10^{15}\)

=2116111927

mình vừa nhanh vừa đúng 

k nha

cảm ơn

kb nữa

2116111154 nha ad

\(\frac{9999999999}{2}+\frac{9999999999}{3}+\frac{9999999999}{6}\)

\(=9999999999\cdot\left(\frac{1}{2}+\frac{1}{3}+\frac{1}{6}\right)\)

\(=9999999999\cdot1\)

\(=9999999999\)

Nhân xét biểu thức A, ta thấy:

   \(\frac{9999999999}{2}>\frac{9999999999}{3}>\frac{9999999999}{6}>0\)

=> \(A>0\left(đpcm\right)\)

ta có 9999999999/2=9999999999*3/2*3

9999999999/3=9999999999*2/3*2

suy ra 9999999999*3/2*3 - 9999999999*2/3*2=9999999999*3-9999999999*2/6=9999999999/6

suy ra A=9999999999/6-9999999999/6=0

vậy A=0

\(A=9999999999.\left(\frac{1}{2}-\frac{1}{3}-\frac{1}{6}\right)\)

\(A=9999999999.0=0\)

Vậy A=0

555560  tick mình nha