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Category | Format | Size |
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People's Education Press Mathematics Volume 2 for Sixth Grade | pptx | 6 MB |
Description
"The Meaning of Proportion" Proportion PPT Courseware 2
review
1. What is ratio?
The division of two numbers is also called the ratio of the two numbers.
2. What is ratio?
The quotient obtained by dividing the first term of the ratio by the second term of the ratio is called the ratio.
Two ratios from which of the following groups can form a proportion? Write down the proportions of the composition.
6:10 and 9:15 6:10 and 9:15
Because: 6∶10 = 0.6 9:15 = 0.6
So: 6:10 = 9:15
Because: 20∶5 = 4 1:4 = 0.25
Therefore: 20:5 and 1:4 cannot form a ratio.
fill in the blank
If the ratios of two ratios are equal, then the two ratios are ( ) proportional.
For a ratio, the ratio of the left side of the equal sign to the ratio of the right side of the equal sign must be ( ).
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For more information about the "The Meaning of Proportion" PPT courseware, please click on the "The Meaning of Proportion ppt" Proportion ppt tag.
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"The Meaning of Proportionality" PPT:
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Update Time: 2024-11-22
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