"The Meaning of Proportion" Proportion PPT Courseware 3

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"The Meaning of Proportion" Proportion PPT Courseware 3

Write down the ratio of the length and width of the photo after enlarging it to that before enlarging it. Can these two ratios also form a proportion?

Two ratios form a proportion if their simplified ratios are the same or their ratios are equal.

Can 15:10 and 60:40 form a ratio? How do you judge?

To determine whether two ratios can form a ratio, you need to see whether their ratios are equal.

A car traveled 320 kilometers in 4 hours in the morning and 240 kilometers in 3 hours in the afternoon.

(1) The ratio of distance traveled in the morning to time is ( )

(2) The ratio of distance traveled to time in the afternoon is ( )

(3) Can these two ratios form a proportion? Why?

Can the ratio of two travel distances and the ratio of two travel times also constitute a ratio?

1. Fill in the blanks

1. If the ratios of two ratios are equal, then the two ratios are ( ) proportional.

2. For a ratio, the ratio on the left side of the equal sign and the ratio on the right side of the equal sign must be ( ).

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"The Meaning of Proportionality" PPT:

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"The Meaning of Proportion" Ratio and Proportion PPT Courseware:

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Update Time: 2024-09-22

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 2 industry PPT template

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