Answer :

Answer: 2:5

Step-by-step explanation: To express the ratio 12:30 in the form 1

, you divide both numbers by their greatest common divisor (GCD), which is 6:

12 ÷ 6 = 2

30 ÷ 6 = 5

So, the ratio 12:30 in the form 1

is 2:5.

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