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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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Because it can be expressed as a fraction.

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8y ago
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Q: Why is a mixed number a rational number?
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