A mixed number is of the form a b/c where a, b and c are integers and a and c are non-zero.Now, a b/c = (ac + b)/c
and, by the laws governing the basic operations for integers, (ac + b) is an integer.
Therefore, the mixed number can be expressed as a ratio of two integers. It is therefore a rational number.
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The answer depends on what you mean by a mixed number. A mixed fraction, for example, is always a rational number - without exception.
Because they can be expressed as a fraction
4.7 is already a rational number. If you mean as a mixed number, this is equal to 4 7/10 or four and seven tenths.
A mixed number is either less than -1 or greater than +1.
no but if you are not considering 1/pi or any other irrational number then the answer is yes