Study Guide: Chapter 2 Flashcard 1 Add/Subtract Rationals

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 fractions with different denominators?

Back

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

Front

What is the additive inverse of a number?

Back

The additive inverse of a number is the value that, when added to the original number, results in zero.

Front

How do you subtract fractions?

Back

To subtract fractions, ensure they have a common denominator, then subtract the numerators and keep the denominator the same.

Front

What is the process to convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

How do you find the difference between two temperatures?

Back

To find the difference between two temperatures, subtract the lower temperature from the higher temperature.

Front

What is the formula for finding the total amount after deposits and withdrawals?

Back

Total Amount = Initial Balance + Deposits - Withdrawals.

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, used to perform addition or subtraction.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common divisor (GCD).

Front

What is the sum of 2/7 and 3/14?

Back

The sum of 2/7 and 3/14 is 1/2.