Arithmeticeasy · Past Paper

What is the simplest form of the ratio 15:25?

A3:5
B5:3
C2:3
D3:4

✓ Correct Answer: A3:5

To simplify a ratio, divide both terms by their greatest common divisor (GCD). Here, GCD of 15 and 25 is 5, so 15/5 : 25/5 = 3:5.

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