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First of all counting numbers (positive integers) are rational numbers so without rational numbers there would be no counting.

You could not equitably share one item between two or more people without fractions (rational numbers). Everything does not come in whole numbers - there are times when you need half-a-day, or 2.5 teaspoons, etc.

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Q: Why rational numbers were required?

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4.72 is a rational number because if so required it can be expressed as fraction in the form of 118/25 in its lowest terms.

There are no consecutive rational numbers. Between any two rational numbers there are an infinity of rational numbers.

No. Rational numbers are numbers that can be written as a fraction. All rational numbers are real.

The set of rational numbers includes all whole numbers, so SOME rational numbers will also be whole number. But not all rational numbers are whole numbers. So, as a rule, no, rational numbers are not whole numbers.

Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction. All natural numbers are rational.

6.6 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

All rational numbers are real numbers.

They do not. There is no relationship between rational numbers and rational decisions.

All rational numbers are not whole numbers, as rational numbers can include fractions.

The set of rational numbers includes the set of natural numbers but they are not the same. All natural numbers are rational, not all rational numbers are natural.

Whole numbers ARE rational.

All numbers that can be expressed as fractions are rational

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