# Adding and Subtracting Real Numbers

### Popular Tutorials in Adding and Subtracting Real Numbers

#### How Do You Subtract Fractions with Different Denominators?

Subtracting fractions with unlike denominators doesn't have to be a nightmare. Just find a common denominator and everything calms down! See how to keep your fraction subtraction calm with this tutorial.

#### How Do You Subtract Fractions with the Same Denominator?

Subtracting fractions with like denominators? Just subtract the numerators and put the result over the common denominator! To see this process in action, check out this tutorial!

#### How Do You Find a Common Denominator and a Least Common Denominator?

This tutorial gives you some practice finding a common denominator and the least common denominator of three fractions. There's only one least common denominator, but there are many common denominators. This tutorial gives you one. Can you find another?

#### How Do You Add Fractions with Different Denominators?

Trying to add fractions with unlike denominators? You're going to need a common denominator first! Follow along with this tutorial and see what you need to do to add these fractions together.

#### How Do You Add a Negative Number to a Positive Number?

How do you combine a positive and a negative number? This tutorial shows you how. You even get to see it explained with a number line!

#### How Do You Add Fractions with the Same Denominator?

While adding fractions can be hard, adding fractions with the same denominator is just as easy as adding numbers. That's why when you add fractions you first get all of them to have the same denominator, and then add them up. In this tutorial you get to see just how easy it is to add up fractions once they have the same denominator!

#### How Do You Subtract a Positive Number from a Negative Number?

Subtracting a positive from a negative? Just remember: subtracting a positive is the same as adding a negative. See how it works in this tutorial!

#### How Do You Subtract a Negative Number from a Positive Number?

Subtracting a negative from a positive? Just remember: subtracting a negative is the same as adding a positive. See how it works in this tutorial!

#### How Do You Add and Subtract a Bunch of Numbers with Different Signs?

Some problems require adding and subtracting a combination of positive and negative numbers. Watch this tutorial and learn how to keep everything organized so you can find the answer!

#### How Do You Rewrite Subtraction as Addition?

Subtracting a positive is the same thing as adding a negative. Subtracting a negative is the same as adding a positive. Get a closer look with this tutorial!

#### How Do You Add Two Negative Numbers?

Adding two negative numbers together? Just add the absolute value of each number together, put a negative sign in front, and you have your answer! See how it's done in this tutorial.

#### How Do You Subtract a Whole Number from a Fraction?

Subtracting a whole number from a fraction can be tricky. Luckily, watching this tutorial can make this subtraction no big deal!

#### How Do You Subtract Decimals?

Doing math with paper and pencil can come in real handy, so make sure you're comfortable subtracting decimals by hand. After all, you don't want the calculator to be a crutch!

#### How Do You Add Decimals?

Doing math with paper and pencil can come in real handy, so make sure you're comfortable adding decimals by hand. After all, you don't want the calculator to be a crutch!

#### What are Trailing Zeros?

Ever wondered about the zeros that come at the end of a decimal number? What are those things anyway? Do they actually matter in terms of the value of the number? Watch the tutorial and see for yourself :)

#### How Do You Add Fractions with Variables?

Want to add fractions with the same variables but with unlike denominators? You'll need to find a common denominator! Don't worry. This tutorial will show you how!

#### How Do You Subtract Fractions with Variables?

Want to subtract fractions with the same variables but with unlike denominators? You'll need to find a common denominator! Don't worry. This tutorial will show you how!

#### What are the Rules for Using Absolute Values to Add Integers?

When you're combining numbers, there are some helpful rules to make that process a little easier. This tutorial shows you the rules for using absolute values to combine integers with the same sign or with opposite signs. Take a look!

#### What is the Opposite, or Additive Inverse, of a Number?

Have you ever combined two numbers together and found their sum to be zero? When that happens, those numbers are called additive inverses of each other! In this tutorial, you'll learn the definition for additive inverse and see examples of how to find the additive inverse of a given value.