How do you know if a number is rational or irrational

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asked Nov 19, 2019 215k views

2 Answers

Davide ND · Answer 1 · 2019-11-20T04:11:53+0000

A rational number is, as the name implies, any number that can be expressed as a ratio, or fraction.An irrational number can be written as a decimal, but not as a fraction.

Sifnos · Answer 2 · 2019-11-23T18:10:15+0000

A rational number is a number that is not repeating. So a rational number can be 5 or 2.3314. But Pi is irrational. So is 1/3 and 2/3 because in decimal form they are repeating. Which means they will go on forever which makes them irrational.

How do you know if a number is rational or irrational

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