The diameter of a 20 oz bottle is 5.6 cm. The diameter of a little bottle is 10.5 cm. Express the ratio of these two diameter as a ratio of whole number

Question

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Answer 1

Ratio = 5.6/10,5

         = 56/105                [multiply numerator and denominator by 10]

         = 8/15                    [to reduce, divide numerator and denominator by 7]

Answer 2

Convert these two decimals as improper fraction.

 

5.6 = 56/10 = 28/5

 

10.5 = 105/10 = 21/2

 

 

Ratio = (28/5) / (21/2)

        = (28/5) * (2/21)

        = 56 / 105

        = 8 / 15