Question

Which of the following shows that 5/8 = 15/18 is a proportion

Answer 1

Given:

5/8 = 15/18 to check if their proportional

Solution:

We can check if their proportional by checking if their cross-products are similar.

$\sf \: \frac{5}{8} = \frac{15}{18}$

➟ 5 • 18 = 90

➟ 8 • 15 = 120

Therefore, after analysing the value we noticed they aren't similar which means they are not proportional.

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