I don't get this question. Without writing 3/5 and 9/15 in simplest form or using the Cross-Products Property, how can you tell wether the ratios form a proportion?

Question

I don't get this question.  Without writing 3/5 and 9/15 in simplest form or using the Cross-Products Property, how can you tell wether the ratios form a proportion?

vocaloid · Answer

it's basically asking, how we can show that 3/5 and 9/15 are equal WITHOUT cross-multiplying or reducing them to simplest form

vocaloid · Answer

one way we could do this is simply to divide the numerator by the denominator

3/5 = 0.6
9/15 = 0.6

anonymous · Answer

I know but I only know how to simplify and use cross multiplying.

anonymous · Answer

Ohhhh... I seee

anonymous · Answer

Thank you @Vocaloid :D Great Help!