This clip summarizes the key points pertaining to ratio and proportion. It explains that a ratio is a kind of fraction used to describe the relative sizes of two numbers, also noting that a proportion is a statement that..
This clip explains that all fractions can be organized into families or classes. For example, the clip continues, 1/2, 2/4, 3/6, 4/8 and 5/10 and so on all belong to the same class. Another example is any fraction whose ..
This clip uses the number line to explain that some fractions with different names, like 1/2 and 2/4, actually represent the same number.
This clip explains that one way to rename a fraction is to multiply both numerator and denominator by the same non-zero number. This is called multiplying through by the number.
This c lip explains the process of renaming fractions in lower terms, which is called "reducing" the fraction. While renaming fractions in higher terms is accomplished by multiplying through, renaming (or reducing) the f..
This clip summarizes renaming fractions, explaining that numerators and denominators can be multiplied or divided by the same non-zero number without changing the value of the fraction. The clip concludes by stating that..
This clip explains that renaming fractions in higher terms is essential for adding, subtracting, or comparing two or more fractions. "On the other hand," the clip continues, "reducing fractions is mostly a matter of conv..
This clip provides examples of how to round to the nearest tenth or hundredth. The clip explains that the procedure is basically the same in either case, except that, when rounding to the nearest tenth, it's necessary to..
This clip talks about the use of rounding in measuring distances to the nearest whole number, rather than to the nearest tenth.
This clip explains that decimals aren't the only numbers that can be rounded. "Whole numbers can also be rounded," the clip points out. Examples are then provided to show how that's done.