The ratio of 3.2:0.6 is (); the ratio of 1 / 15:1 / 9 is ()

The ratio of 3.2:0.6 is (); the ratio of 1 / 15:1 / 9 is ()

The ratio of 3.2:0.6 was (16 / 3);
The ratio of 1 / 15:1 / 9 is (3 / 5)
Use one of the ratios to form a ratio (9 / 15)
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