Adding/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 two rational numbers with the same denominator?

Back

To add two rational numbers with the same denominator, you add the numerators and keep the denominator the same.

Front

How do you subtract two rational numbers with the same denominator?

Back

To subtract two rational numbers with the same denominator, you subtract the numerators and keep the denominator the same.

Front

What is the result of adding a positive rational number and a negative rational number?

Back

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

Front

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

Back

Subtracting a negative rational number is the same as adding its positive counterpart.

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 first step in subtracting rational numbers with different denominators?

Back

The first step is to find a common denominator for both fractions.

Front

Calculate: 3 + (-5)

Back

3 + (-5) = -2.

Front

Calculate: -4.5 + 2.3

Back

-4.5 + 2.3 = -2.2.

Front

Calculate: -7.8 + (-0.8)

Back

-7.8 + (-0.8) = -8.6.