Ideas:

1. First of all, a chicken and a rabbit have two feet, and * * * has 6*2= 12 feet;

2. The extra 16- 12=4 feet belong to rabbits, and each rabbit has 2 feet (originally counted as 2 feet).

Solution:

Rabbit: (16-6*2)/2=2 (only)

Chicken: 6-2=4 (only)

There are two rabbits and four chickens.

Equation calculation:

Solution: Suppose there are X rabbits and 6-x chickens among rabbits.

Equation according to the meaning of the question:

4*x+2*(6-x)= 16

4x+ 12-2x= 16

2x=4

X=2 (only)

6-x = 6-2 = 4 2 (only)

There are two rabbits and four chickens.