Describe the basics of ratios.
Answer:
We use ratios to make comparisons between two things. When we express ratios in words, we use the word "to" -- we say "the ratio of something to something else" -- for example, the ratio of squares to triangles in the illustration below. Ratios can be written in several different ways.
Multiplying or dividing each term by the same nonzero number will give an equal ratio. For example, the ratio 2:4 is equal to the ratio 1:2. To tell if two ratios are equal, use a calculator and divide. If the division gives the same answer for both ratios, then they are equal.
Đăng bởi:
ycantho - Ngày đăng:
14/01/2011
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