Add and Subtract Rational Numbers

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

How do you add two fractions?

Back

To add two fractions, you need a common denominator. Convert each fraction to an equivalent fraction with the common denominator, then add the numerators.

Front

What is the result of 0.15 + 2.3?

Back

2.45

Front

What is the result of 0.5 + 0.25?

Back

0.75

Front

What is the missing number in the equation 13 + (?) = 0?

Back

-13

Front

What is the additive inverse of 5?

Back

-5

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

What is the process to subtract fractions?

Back

To subtract fractions, find a common denominator, convert the fractions, and then subtract the numerators.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms by dividing the numerator and denominator by their greatest common divisor.

Front

What is the result of -3 + 7?

Back

4