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

The LCD for 6 and 9 is 36.

Back

False.

Front

Following the integer rules, would you add or subtract the fractions?

Back

add, the answer would be negative.

Front

What is the value of 18 - 23.2?

Back

-5.2

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 find the least common denominator (LCD)?

Back

List the multiples of each denominator and find the smallest common multiple.

Front

What is the sum of -3/4 and 1/2?

Back

-1/4.

Front

What happens when you add a positive and a negative rational number?

Back

You subtract their absolute values and take the sign of the number with the larger absolute value.

Front

What is the difference between adding and subtracting rational numbers?

Back

Adding combines values, while subtracting finds the difference between values.