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Math 6: The Meaning of Ratio
① Four-thirds hours: 45 minutes ② 1.2 tons: 350 kg (ratio)

Wang Ming walks 300 meters in 6 minutes and Li Ming walks 540 meters in 9 minutes. What is the speed ratio of Wang Ming in Li Minghe? What's the ratio?

④ The simplest integer ratio is 7.5: 2.5 (3: 1), and the ratio is (3). ⑤ Two-thirds: the simplest integer ratio of two-ninth (3: 1), the ratio of (3) ⑥3.6: the simplest integer ratio of six-sevenths (2 1: 5), and the ratio of (4.2).

Change the following ratio to 100.

① The floret is planted with bean seedlings, and the ratio of sprouting trees to planting trees is 18:25.

﹙ 18×4﹚∶﹙25×4﹚=72∶ 100

(2) The ratio of the output completed in the TV factory 10 to the planned output is 2 14:200.

﹙2 14÷2﹚:﹙200÷2﹚= 107∶ 100

Change the following ratio into the simplest integer ratio.

①60:32= 15∶8

②0.45:0.2 =225∶ 1

③ Three sevenths: five sixths = 18: 35.

④ 625ml: three eighths of a liter = 16 1: 75.

⑤ 9kg: 300g =30∶ 1

0.2 hours: 20 minutes = 3: 5.