# How do you know if the pair 12/24 and 3/4 form a proportion?

Jul 28, 2018

As below.

#### Explanation:

If ratio of L H S equals ratio of R H S, , then it forms a proportion.

But $\frac{12}{24}$ when reduced, becomes $\frac{1}{2}$

Since $\frac{1}{2} \ne \frac{3}{4}$, the pair do not form a proportion.

Jul 29, 2018

See below:

#### Explanation:

We know these form a proportion if they are equivalent.

We can reduce $\frac{12}{24}$ to $\frac{2}{4}$. Now, let's compare our fractions:

$\frac{2}{4}$ and $\frac{3}{4}$

We have the same denominators, but different numerators, so these are obviously not equal, thus they don't form a proportion.

Hope this helps!