The ratio of two numbers can be gotten by dividing the first number by the second one, such that:

The question is provided to be:

Hence, we can rewrite the question to be:

We can simplify the fraction by dividing both the numerator and the denominator by 15:
Numerator:

Denominator:

Therefore, the ratio is:

ANSWER:
Fraction: ⁵/₆
Decimal: 0.833333