Adding and Subtracting Rational Numbers

Front

When adding decimals with the same sign you...

Back

add and keep the sign.

Front

4/9 + (-2/3) = ?

Back

-2/9

Front

-1 7/8 + (-3 1/2) = ?

Back

-5 3/8

Front

When adding decimals with different signs you...

Back

subtract and take the sign of the larger number.

Front

-23.4 - 3.4 = ?

Back

-26.8

Front

What is a rational number?

Back

A number that can be expressed as a fraction a/b, where a and b are integers and b ≠ 0.

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 over the original denominator.

Front

What is the first step in adding rational numbers with different signs?

Back

Subtract the absolute values of the numbers.

Front

What is the result of adding two negative rational numbers?

Back

The result is always negative.

Front

What is the result of subtracting a negative number from a positive number?

Back

The result is the sum of the positive number and the absolute value of the negative number.