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Yes, 43 is a rational number. A rational number is any number that can be expressed as a fraction where the numerator and denominator are both integers, and the denominator is not zero. In this case, 43 can be written as 43/1, which fits the definition of a rational number.
Well, honey, a rational number is any number that can be expressed as a fraction, and 43 can be written as 43/1. So yes, 43 is a rational number. But hey, don't let that stop you from asking more thrilling math questions!
Because 4.3 can be represented by a fraction of two integers, namely 43/10, it is therefore a rational number.
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You wont be able to add a rational number and an irrational number and get a number not in a fraction ( 3 + 22/7) (21/7 + 22/7 = 43/7) So, yes as you see in the example above it made another irrational number.
Yes.
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It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.