Which number is irrational? Select one: a. √169 b. √144 c. √81 d. √156

Which number is irrational? Select one: a. √169 b. √144 c. √81 d. √156

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What's a rational number?

A rational number is a number that can be expressed as a fraction or ratio (rational). The numerator and the denominator of the fraction are both integers.

A rational number can also be a whole number.

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