Question

计算：(2

12

-3

1 3

)×

6

×

4 1 2

÷

2 1 4

．

Answer 1

(2

12

-3

1 3

)×

6

×

4 1 2

÷

2 1 4

=(4

3

-

3

)×

6

×

9 2

÷

9 4

=3

3

×

6

×

3 2

2

÷

3

2

=9

2

×

3 2

2

×

2

3

=9

2

×

2

=18．