Verified Answer :

The answer is a)60/35
   
         60/35
         12/7
                           60/12=5
                           35/7=5

The ratio that forms a proportion are 12 / 7 and 60 / 35.

A proportion is two equal ratios.

A ratio compares two quantities.

One of the way to check if two ratios are equivalent is to cross multiply and compare the cross products.

Therefore,

For the ratio a / b and c  / d. If ad = cb , then a / b and c / d are proportional

and this means a / b = c / d

Therefore,

12 / 7  = 60 / 35

12 × 35 = 60 × 7

420 = 420

Therefore, the ratio that forms a proportion are 12 / 7 and 60 / 35.

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