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Numbers that cannot be written as fractions (A divided by B or "A over B") are called Irrational Numbers. Some of the most well-known irrational numbers are π (pi, the ratio of any circle's circumference to its diameter) and e (Euler's number), the number that is the base of the natural logarithm (ln x = loge x).
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Is real number is always a rational number?
They are not. Sometimes they are irrational. Irrational numbers cannot be expressed as a fraction.
Is evry rational number a real number?
Yes. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is zero an irrational number?
No. Quite simply an irrational number cannot be written as a fraction and you could write zero as a fraction ex. 0/1
What is nine-tenths expressed as a unit fraction?
In a unit fraction, the numerator is always the number 1. 9/10 cannot be written as a unit fraction.
Is a real number a rational number?
Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction. Not all real numbers are rational.
