Question

Thực hiện phép tính:

\(\frac{12.194+6.432.2+3.369.4}{1+5+9+13+...+57+61+65.2-26}\)

Answer 1

Ta có: *12.194+6.437.2+3.369.4

=12.194+12.437+12.369
=12(194+437+369)

=12.1000

=12000
*1+5+9+13+…+57+61+65.2-26

=(1+61)+(5+57)+…+(29+33)+130-26
=62.8+130-26

= (496-26)+130

=470+130=600
\(\Rightarrow A=\frac{12000}{600}=20\)