Determine if 2.5/10=12/48 or 2.5/2=12/24 is a proportion. (1 point)

2.5/20=12/28
Neither is a proportion.
2.5/2=12/24
Both are proportions.

To determine if two fractions are a proportion, you need to check if they are equivalent.

Let's simplify both fractions:

For 2.5/10=12/48:
The numerator and denominator of 2.5/10 can be divided by 2:
2.5/10 = 1.25/5

The numerator and denominator of 12/48 can be divided by 12:
12/48 = 1/4

Therefore, 1.25/5 is not equal to 1/4.

For 2.5/2=12/24:
The numerator and denominator of 2.5/2 can be divided by 2.5:
2.5/2 = 1/0.8

The numerator and denominator of 12/24 can be divided by 12:
12/24 = 1/2

Therefore, 1/0.8 is not equal to 1/2.

Since neither 2.5/10=12/48 nor 2.5/2=12/24 are equivalent fractions, neither of them is a proportion.