Why U
Pre-Algebra 14 - Creating Common Denominators
Addition and subtraction of fractions with different denominators requires creating a "common" denominator. Using the number line, this mysterious process can be easily visualized.
Curated Video
Rewriting Fractions with Variables: Applying the Rules of Polynomials
In this video, students will learn how to rewrite fractions that include variables by applying the rules of fractions. The lesson covers simplifying polynomial expressions and understanding the process of cross-cancelling terms in the...
Curated Video
Identifying Improper Fractions on a Number Line
In this video, students learn how to identify improper fractions on a number line by dividing it into equal parts. The teacher uses the analogy of dividing a candy bar into thirds to explain the concept. Students also learn that the...
Brian McLogan
Learn how to add, subtract, multiply and divide two fractions, 3/4 + 2/3
👉 Learn how to add and subtract fractions whose denominators are not the same. Recall that when we want to add or subtract fractions having the same denominator, we add the numerators and retain the (common) denominator. This is...
Curated Video
Subtracting Mixed Fractions Using an Area Model
In this video, students learn how to subtract mixed fractions using an area model. The teacher explains the importance of understanding the different parts of a fraction and demonstrates how to represent fractions using area models....
KnowMo
Subtracting Mixed Numbers: Two Methods
The video is a lecture on how to subtract mixed numbers. The instructor presents two different methods for subtracting mixed numbers and walks through an example using both methods. The first method involves separating the whole number...
Curated Video
Multiplying Fractions with Fractions: Using an Algorithm to Solve Problems
In this video, students learn how to multiply fractions with fractions using a sequence of operations. The teacher explains the concept using visual representations and then introduces an algorithm to solve these problems more efficiently.
Curated Video
Division of Unit Fractions by Whole Numbers: Solving Real-Life Problems
In this video transcript, the teacher explains how to solve problems involving the division of unit fractions by whole numbers using fraction models, number lines, or pictures. The teacher provides examples, such as dividing a candy bar...
Curated Video
Exploring Opposites of Fractions on a Number Line
In this lesson, students will learn about the concept of opposites of fractions by using a number line. They will understand how the numerator and denominator determine the location of a fraction on the number line and how to identify...
Curated Video
Multiplying a Fraction by a Mixed Number using Visual Representations
In this video, the teacher explains how to multiply a fraction by a mixed number using visual representations. The lesson begins with a review of fractions and their parts, the numerator and denominator.
Brian McLogan
How to Add, Subtract, Multiply and Divide Fractions | 52 Examples
In this video I show you how to add, subtract, multiply and divide fractions by working through 52 different examples. I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those...
Brian McLogan
Learn how to determine the product of a mixed number by a whole number
👉 Learn how to multiply mixed numbers. To multiply mixed numbers, we first convert the mixed numbers to improper fractions and then multiply the resulting mixed numbers by multiplying the numerator by the numerator and the denominator by...
Curated Video
Partitioning the Whole: Solving Division Problems with Fractions
In this video lesson, students learn how to solve division problems by partitioning the whole. The instructor explains the concept using fraction bars and fractional amounts. Through examples and explanations, students understand how to...
Curated Video
Subtracting Fractions with Like Denominators: Not Starting with One Whole
In this video, students learn how to subtract fractions with like denominators when they are not starting with a whole. The teacher uses visual aids, such as brownies and pizza slices, to help students understand the concept of unit...
Brian McLogan
Solve and graph a compound inequality with algebra
👉 Learn how to solve and graph compound linear inequalities. A compound inequality is an inequality having more than 1 inequality sign. To solve compound inequalities, we use inverse operations, applying the inverse operation to each...
Curated Video
Crude Oil: Properties and Fractional Distillation
In this video, the presenter discusses crude oil - what it is, how it's formed, and how it's separated into its various components through fractional distillation. The video covers the different fractions of crude oil, their properties...
Brian McLogan
Solving an exponential equation by taking log of both sides
👉 Learn how to solve exponential equations in base e. An exponential equation is an equation in which a variable occurs as an exponent. e is a mathematical constant approximately equal to 2.71828. e^x is a special type of exponential...
Brian McLogan
Using the properties of Natural logs to solve an exponential equations
👉 Learn how to solve exponential equations in base e. An exponential equation is an equation in which a variable occurs as an exponent. e is a mathematical constant approximately equal to 2.71828. e^x is a special type of exponential...
Brian McLogan
How to apply u substitution to radicals
👉 Learn how to evaluate the integral of a function. The integral, also called antiderivative, of a function, is the reverse process of differentiation. Integral of a function can be evaluated as an indefinite integral or as a definite...
Curated Video
Creating Equivalent Fractions through Multiplication and Area Models
In this video, the teacher explains how to make fractions equivalent when their denominators are different. The students learn to create equivalent fractions by multiplying both the numerator and denominator of a fraction by the same...
Curated Video
Understanding the Difference Between Fractions and Ratios
This video explains the difference between fractions and ratios by examining their definitions and using diagrams. It clarifies that a ratio is a comparison between two or more quantities, while a fraction expresses a number that is part...
Brian McLogan
How to use the Remainder Theorem with Polynomials
How to use the Remainder Theorem with Polynomials
Brian McLogan
Learn how to add two fractions with unlike denominators
👉 Learn how to add and subtract fractions whose denominators are not the same. Recall that when we want to add or subtract fractions having the same denominator, we add the numerators and retain the (common) denominator. This is...