Question

How do you know if the pair 4/2 and 20/6 form a proportion?

Answer 1

Answer:

Step-by-step explanation:

There are 2 ways to solve it.

1) Division

You could divide the numerator by the denominator of each fraction to see if they are equal/in proportion or not:

4/2 = 2

20/6 = 3.33

Thus, they do not form a proportion.

2) LCM of Denominator

You could take both the denominators to one value, and see if the numerators of the fractions are the same:

4/2 and 20/6

Lcm = 6

4*3/2*3 and 20*1/6*1

12/6 and 20/6

Now, both the fractions have the same denominator, but the numerators are not the same number:

12/6 ≠ 20/6

Thus, they do not form a proportion.