Determine if the number 85.6 fits any of the following characteristics:
Natural Number Test
A number is natural if it is one of the counting numbers (greater than 0), i.e., 1,2,3,4,5,...
Since 85.6 is not both positive and a counting number, 85.6 is not a natural
The number is an integer if it is a whole number positive or negative including the number 0, ...,-5,-4,-3,-2,-1,0,1,2,3,4,5,...
Since 85.6 is not a whole number, 85.6 is not an integerRational Number Test
The number 85.6 is rational if it is an integer or decimal
A rational number is a number that can be represented a/b where a and b are integers and b is not equal to 0.
Since 85.6 is an integer or decimal from above, 85.6 is also a rationalIrrational Number Test:
An irrational number is a number that cannot be expressed as a ratio between two integers and is not an imaginary number.
Since 85.6 is a rational number from above, 85.6 is not an irrational numberProperty Summary for the number 85.6