\(\frac{1996\times1995-996}{1000+1996\times1994}=\frac{1996\times1994+1996-996}{1996\times1994+1000}=\frac{1996\times1994+1000}{1996\times1994+1000}=1\)

1996 x 1995 - 996                        1000 + 1996 x 1994

= 3982020   - 996                        = 1000 + 3980024

= 3981024                                    = 3981024

2 kết quả bằng nhau!!!!!!

1996x1995-996

----------------------

1000+1996x1994

=(1996-996)x1995

  ------------------------

   (1994+1996)x1000

=1000x1994

------------------------

3990x1000

=1994000

------------------

3990000

=997

--------

1995

1996 * 1995 - 996 / 1996 * 1994 + 1000

= 1996 * 1994 + (  1996 - 996 ) / 1996 * 1994 + 1000

= 1996 * 1994 + 1000 / 1996 * 1994 + 1000 

= 1

**** cho mink nha !

K qua la bang 1 nha bn !

1996 x 1995 - 996 / 1000 + 1996 x 1994 = 1

D/s : 1

mình k biết gõ dấu phân số để ngăn cách

=0

đơn giản vậy

1996 x 1995 - 996 - 1000 - 1996 x 1994

= 1996 x (1995 - 1994) - (996 + 1000)

= 1996 - 1996

= 0

a) 399(45+55) / 1995(1996-1991)

=39900 / 9975

=4

b) 

a) \(\frac{399\cdot45+55\cdot399}{1995\cdot1996-1991\cdot1995}\)

\(=\frac{399\cdot\left(45+55\right)}{1995\cdot\left(1996-1991\right)}\)

\(=\frac{399\cdot100}{1995\cdot5}\)

\(=4\)

=))

a) 399(45+55) / 1995(1996-1991)

=39900 / 9975

=4

a) \(\frac{399\cdot45+55\cdot399}{1995\cdot1996-1991\cdot1995}\)

\(=\frac{399\cdot\left(45+55\right)}{1995\cdot\left(1996-1991\right)}\)

\(=\frac{399\cdot100}{1995\cdot5}\)

\(=4\)

=))

\(\frac{1996x1995-996}{1000+1996x1994}\)

\(=\frac{1996x1994+1996-996}{1000+1996x1994}\)

\(=\frac{1996x1994+1000}{1000+1996x1994}\)

\(=1\)

1996 x 1995 - 1996 - 1996 x 1994 =

1996 x 1995 - 1996 x 1995 = 0

k cho mk nha!!

1996 x 1995 - 996 - 1000 - 1996 x 1994

= 1996 x 1995 - (996 - 1000) - 1996 x 1994

= 1996 (1995 -1 - 1994)

= 0

Mk không biết gõ dấu phân số để ngăn cách 

Ok xin lỗi nhak babe