Chapter 2 Operations of Rational Numbers

Front

What are rational numbers?

Back

Rational numbers include integers, fractions, and decimals. They can be expressed as a fraction of two integers.

Front

How do you find the distance between two rational numbers?

Back

Subtract the two numbers and take the absolute value of the result.

Front

What is the first step when multiplying or dividing mixed numbers?

Back

Turn them into improper fractions.

Front

What is the rule for dividing fractions?

Back

Keep the first fraction, change the operation to multiplication, and flip the second fraction to its reciprocal.

Front

How do you order and compare rational numbers?

Back

Change them to decimals and compare their place values.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.

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 convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms by dividing the numerator and denominator by their greatest common divisor.