How do you simplify to tell whether the ratios #3/5, 5/3# form a proportion?

Question

3817 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-01T19:22:14

They are not in direct proportion.

A proportion is a statement that two ratios are equal.

Fractions can be written as ratios.

Is #3 : 5 = 5 :3#??

It should be obvious that these are not equal.

In a direct proportion, as one quantity increases, the other decreases.

# 3# does not compare with #5# in the same way as #5# compares with #3#.

The fractions #3/5 and 5/3# are also not equal
One is a proper fraction and the other is an improper fraction.