Multiplying Fractions: Multiplying Fractions and Canceling
This clip explains that, "
.when we multiply together two or more fractions, and the same number appears in a numerator and a denominator
we are allowed to divide through or 'cancel' in both places." The clip concludes by stating that, "
if you d...
Multiplying Fractions: Multiplying Fractions by Whole Numbers
This clip explains what it calls the first rule for multiplying a whole number by a fraction. The answer will be a fraction with a numerator and a denominator. The denominator will be the same as the denominator of the original fraction. The numerat...
Multiplying Fractions: Multiplying Two Fractions With Numerators of One
This clip explains what it calls the second rule for multiplying fractions, in which each fraction has a numerator of one. "When you multiply these fractions," the clip states, "
the answer will also be a fraction. Its numerator will be 1 times 1 o...
Multiplying Fractions: Multiplying Fractions by Fractions
This clip explains that before we address the topic of multiplying two fractions, we need to remind ourselves of one important use of multiplication. It then offers two examples of multiplication being used to determine the total area of a rug and a...
Multiplying by the Least Common Denominator to Get a Quadratic Equation
The steps involved in solving an equation by multiplying by the least common denominator to get a quadratic equation and checking the solution are detailed.
Metric System, The: Solving Conversion Problems: The Decimal Method and the Unit Cancellation Method
This clip explains how to solve unit conversion problems using the decimal method and the unit cancellation method. The clip points out that, "
the advantage of unit cancellation is that you're not likely to make mistakes with decimals. The advanta...
Measurement and Unit Conversion: Unit Conversion Factors of Time: Hours, Minutes and Seconds
This clip presents unit conversion problems involving sleep that can be solved by utilizing unit equivalences for seconds to minutes and minutes to hours, and then either multiplying or dividing.
Measurement and Unit Conversion: Unit Conversion Factors of Time: Days and Hours
This clip introduces unit conversion factors of time involving days and hours. "It is not important to memorize these factors," the clip explains. "As long as you already know the equivalences, you can figure out the unit conversion factors." The cl...
Measurement and Unit Conversion: Unit Conversion and Cancellation
This clip takes the student through the process of solving problems involving unit equivalences for time. As part of this process, it introduces a number of important terms and concepts, including unit conversion and unit cancellation.
Measurement and Unit Conversion: Summary: Measurement and Unit Conversion
This clip summarizes measurement and unit conversion. The clip explains methods for converting from one unit to another, including "...the method in which we always multiply. This method is called 'unit cancellation.' In unit cancellation, we use a ...