Mathematics
Grade9
Easy

Question

If fraction numerator a over denominator b end fraction equals fraction numerator c over denominator d end fraction is a proportion, then which is not a satisfying property for proportion?

  1. ab = cd    
  2. fraction numerator b over denominator a end fraction equals fraction numerator d over denominator c end fraction    
  3. fraction numerator a over denominator c end fraction equals fraction numerator b over denominator d end fraction    
  4. fraction numerator a over denominator b end fraction equals fraction numerator d over denominator c end fraction    

Hint:

Check the options that matches the proportionality.

The correct answer is: ab = cd


    An equation that states that two ratios are equal is called a proportion.
    ab = cd Not satisfying the property of proportionality because ac = bd .

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