We can simplify the fractions first. If we look at the numerator of the first fraction and the denominator of the second fraction, we can change 9 into 1 and 18 into 2 since 18 is a multiple of 9. Likewise, we can change 5 to 1 and 25 to 5 since 25 is a multiple of 5.
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We can simplify the fractions first. If we look at the numerator of the first fraction and the denominator of the second fraction, we can change 9 into 1 and 18 into 2 since 18 is a multiple of 9. Likewise, we can change 5 to 1 and 25 to 5 since 25 is a multiple of 5.
The answer is 2/5.