Rational Number Review

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 subtract a negative rational number from a positive rational number?

Back

To subtract a negative rational number, you add its absolute value to the positive rational number.

Front

What is the result of \( \frac{5}{8} - \left(-\frac{7}{8}\right) \)?

Back

The result is \( 1 \frac{1}{2} \) or \( \frac{12}{8} \).

Front

What is the product of two positive rational numbers?

Back

The product of two positive rational numbers is always a positive rational number.

Front

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

Back

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

Front

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

Back

The sum can be positive, negative, or zero, depending on the absolute values of the numbers.

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 the fractions, and then add the numerators.

Front

What is the result of \( 6.59 + (-7.8) - (-2.41) \)?

Back

The result is \( 1.2 \).

Front

What does the expression \( - \times - \) equal?

Back

The expression \( - \times - \) equals \( + \) (a positive number).

Front

How do you find the distance between two numbers on a number line?

Back

The distance between two numbers \( a \) and \( b \) is found using the formula \( |a - b| \).