Adding and Subtracting Rational Numbers

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you add rational numbers with different denominators?

Back

To add rational numbers with different denominators, find a common denominator, convert the fractions, and then add the numerators.

Front

What is the rule for subtracting rational numbers?

Back

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

Front

What is the result of (-⅚) - (⅗)?

Back

-1 13/30

Front

What is the result of -7 - 2?

Back

-9

Front

What is the value of 18 - 23.2?

Back

-5.2

Front

What is 3 + -7?

Back

-4

Front

How do you simplify the expression 1/2 + 1/3?

Back

Find a common denominator (6), convert to 3/6 + 2/6 = 5/6.

Front

What is the first step in adding fractions?

Back

Identify a common denominator.

Front

What does it mean to have a negative rational number?

Back

A negative rational number is a number that is less than zero and can be expressed as a fraction with a negative numerator or denominator.