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Mathematics

Grade9

Easy

Question

If $fraction numerator a over denominator b end fraction equals fraction numerator c over denominator d end fraction$ , then $a plus b over b equals c plus d over d$ is another proportion; this property is

Reciprocal property
Cross product property
Distributive property
Denominator is added to numerator to form another proportion

hint Hint:

Add 1 in both sides of the ratio to get the required equation.

The correct answer is: Denominator is added to numerator to form another proportion

Here $fraction numerator a over denominator b end fraction equals fraction numerator c over denominator d end fraction$ .
Add 1 in both sides.
$fraction numerator a over denominator b end fraction plus 1 equals fraction numerator c over denominator d end fraction plus 1$
$fraction numerator a plus b over denominator b end fraction equals fraction numerator c plus d over denominator d end fraction$
So, here denominator is added to the numerator to form another proportion.

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