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 different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then add the numerators.

Front

What is the process for subtracting rational numbers?

Back

To subtract rational numbers, find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then subtract the numerators.

Front

What is the sum of a number and its opposite?

Back

The sum of a number and its opposite is zero.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

What is the least common denominator (LCD)?

Back

The least common denominator (LCD) is the smallest common multiple of the denominators of two or more fractions.

Front

How do you simplify a mixed number?

Back

To simplify a mixed number, convert it to an improper fraction by multiplying the whole number by the denominator and adding the numerator.

Front

What is the first step in adding mixed numbers?

Back

The first step in adding mixed numbers is to convert them to improper fractions.

Front

What is the result of adding two fractions with the same denominator?

Back

When adding two fractions with the same denominator, add the numerators and keep the denominator the same.