Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed in the form of a/b, where a and b are integers and b is not zero.

Front

Can all rational numbers be whole numbers?

Back

No, not all rational numbers are whole numbers. Whole numbers are non-negative integers.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, the absolute value of -12.5 is 12.5.

Front

What type of numbers are -15, -45, and -60?

Back

They are negative numbers.

Front

Which sets does the number 15 belong to?

Back

15 belongs to whole numbers, integers, and rational numbers.

Front

Are all integers also rational numbers?

Back

Yes, all integers can be expressed as a fraction with a denominator of 1, making them rational numbers.

Front

What is an example of a rational number?

Back

An example of a rational number is 3/4.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions and have non-repeating, non-terminating decimal expansions.

Front

How do you order rational numbers from least to greatest?

Back

To order rational numbers, convert them to a common denominator or decimal form, then compare their values.

Front

What is the significance of the denominator in a fraction?

Back

The denominator indicates how many equal parts the whole is divided into.