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Mathematics

Grade9

Easy

Question

If $fraction numerator x over denominator 4 end fraction equals fraction numerator y over denominator 8 end fraction$ , then $fraction numerator x plus 4 over denominator 4 end fraction equals$ ?

$y + \frac{8}{8}$
$\frac{4}{8}$
$\frac{1}{2}$
$y + \frac{4}{8}$

hint Hint:

If $fraction numerator a over denominator b end fraction equals fraction numerator c over denominator d end fraction$ , then $fraction numerator a plus b over denominator b end fraction equals fraction numerator c plus d over denominator d end fraction$ numerator, then you form another true proportion

The correct answer is: $y plus fraction numerator 8 over denominator 8 end fraction$

In a proportion, if you add the value of each ratio's denominator to its
If $fraction numerator a over denominator b end fraction equals fraction numerator c over denominator d end fraction$ , then $fraction numerator a plus b over denominator b end fraction equals fraction numerator c plus d over denominator d end fraction$ numerator, then you form another true proportion
Here, $fraction numerator x over denominator 4 end fraction equals fraction numerator y over denominator 8 end fraction$ then $fraction numerator x plus 4 over denominator 4 end fraction equals fraction numerator y plus 8 over denominator 8 end fraction$

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