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Is 3/8 Rational or Irrational hellllllp

 Dec 1, 2020
 #1
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3/8 = 0.375      sooo......what do you think?

 Dec 1, 2020
 #2
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Is 3/8 Rational or Irrational hellllllp   

 

The definition of a rational number is:  a number such as –3/7 that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. 

 

Since 3/8 is already a p/q, then by definition it is rational. A fraction can't be irrational. 

 

The term "rational" is the adjective form of the word "ratio" which takes us back to the p/q definition. 

 

If the question were "is 0.375 rational or irrational" then the answer would be rational, because it can be expressed as a ratio, namely 3/8.  

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 Dec 1, 2020
edited by Guest  Dec 1, 2020

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