Rational numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction p/q of two integers, where p is the numerator and q is the denominator (q ≠ 0).

Tags

CCSS.5.NBT.A.2

Front

What is the multiplicative identity for rational numbers?

Back

The multiplicative identity for rational numbers is 1, because any rational number multiplied by 1 remains unchanged.

Front

What is the sum of two rational numbers?

Back

The sum of two rational numbers is also a rational number, obtained by finding a common denominator and adding the numerators.

Tags

CCSS.7.NS.A.1C

Front

How do you find a rational number between two given rational numbers?

Back

To find a rational number between two given rational numbers, you can take the average of the two numbers or choose a fraction that lies between them.

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Front

What is the decimal representation of the rational number 3/40?

Back

The decimal representation of the rational number 3/40 is 0.075.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What is the process to add two rational numbers with different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

Tags

CCSS.7.NS.A.1C

Front

What is the significance of the number -1/3 in rational numbers?

Back

-1/3 is an example of a negative rational number, which represents a value less than zero.

Tags

CCSS.6.NS.C.6A

Front

Can a rational number be a whole number?

Back

Yes, whole numbers are also rational numbers because they can be expressed as a fraction with a denominator of 1.

Front

What is the difference between a rational number and an irrational number?

Back

A rational number can be expressed as a fraction of two integers, while an irrational number cannot be expressed as a simple fraction and has a non-repeating, non-terminating decimal expansion.

Tags

CCSS.8.NS.A.1

Front

What is an example of a rational number between 3/5 and 4/5?

Back

An example of a rational number between 3/5 and 4/5 is 7/10.

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B