Sal from Khan Academy works through polynomial factoring and multiplication problems that involve geometric images. A tricky set of problems becomes easy with Sal's helpful instruction. Continue …

# Math Videos

## Fractions in lowest terms

Sal from Khan Academy explains how to simplify complicated fractions to their lowest terms. He explains how to simplify fractions in simple terms, and you'll be a pro at breaking down numbers before you know it! Continue …

## Dividing Decimals

Sal from Khan Academy explains how to divide complicated decimal numbers. His explanations help you understand the concept behind dividing decimals and help you realize that the problems are no more difficult than regular long division problems! Continue …

## Equivalent Fractions

Sal from Khan Academy works through complicated fraction word problems to explain the concept of equivalent fractions. His helpful examples make the process simple and easy to understand! Continue …

## Adding Decimals

Sal from Khan Academy explains how to add numbers that contain decimals. His helpful explanation makes the concept behind adding decimals simple, and after you line up the decimals, you'll realize it's no more difficult than regular addition! Continue …

## Changing a Mixed Number to an Improper Fraction

Sal from Khan Academy explains how to rewrite mixed numbers as improper fractions. Learn the difference between the two and how to convert one to the other with ease! Continue …

## Associative Property for Multiplication

Sal from Khan Academy explains the concept behind the associative proper for multiplication. Learn the definition of the term and how it can help you solve tricky multiplication fraction problems! Continue …

## Commutative Property for Addition

Sal from Khan Academy explains the concepts behind the commutative and associative properties of addition. Learn what the terms mean, how to apply them to a problem, and how understanding the ideas can help you solve future problems! Continue …

## Application of Addition of Real Numbers

Sal of Khan Academy explains how to add numbers that are both positive and negative and contain decimals. He uses images to help you understand the concept of adding negative numbers, and by the end of this word problem, you'll be an expert on the topic! Continue …

## Dividing Fractions

Sal from Khan Academy explains how to divide fractions with different denominators. His helpful explanation will make a complicated topic feel easy, and you'll even get additional practice working with mixed numbers. Continue …