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25 votes
25 votes
Which number is irrational? A. 0.656656665... B. 0.78 C. 2.35 D. 꼭

User Esau
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1 Answer

18 votes
18 votes

0.78

can be expressed as a fraction:


(39)/(50)

Therefore, it is a rational number


2.35

Can be expressed as a fraction:


(47)/(20)

Therefore, it is a rational number

However:


0.656656665

can't be expressed as a fraction, therefore, it is an irrational number

User Luminous
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3.1k points