Adding and Subtracting 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 a positive and a negative rational number?

Back

To add a positive and a negative rational number, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

What is the result of 7.19 + (-5.34)?

Back

1.85

Front

How do you subtract rational numbers?

Back

To subtract rational numbers, add the opposite of the number being subtracted.

Front

What is the result of 4/9 + (-2/3)?

Back

-2/9

Front

What is the first step in adding fractions with different denominators?

Back

Find a common denominator.

Front

What is the result of -7/8 - 1/2?

Back

-1 3/8

Front

What is the result of -31 + -7?

Back

-38

Front

What is the process to 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 result of 2/9 + (-4/9)?

Back

-2/9