Operations with Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you 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.

Front

What is the product of two negative numbers?

Back

The product of two negative numbers is a positive number.

Front

What is the product of a positive number and a negative number?

Back

The product of a positive number and a negative number is a negative number.

Front

How do you subtract a negative number from a positive number?

Back

Subtracting a negative number is the same as adding its positive counterpart.

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.

Front

How do you simplify the expression 12.4 x (-6.3)?

Back

The simplified value is -78.12.

Front

What is the difference of –96.43 – (–98.67)?

Back

The difference is 2.24.

Front

How do you find the total cost of multiple items?

Back

Multiply the cost of one item by the number of items, then sum the costs of different items.

Front

What happens when you add two rational numbers?

Back

The result is a rational number, which can be positive, negative, or zero.