Question

alexa set up 34 dominoes on the table, but 18 of them have fallen over. what is the ratio of the number of fallen dominoes to the total number of dominoes? write your answer as a fraction. use a slash ( / ) to separate the numerator and denominator.

Explanation:

Step1: Identify numerator and denominator

The number of fallen dominoes is 18 (numerator), total dominoes is 34 (denominator).

Step2: Form the fraction

The fraction is $\frac{18}{34}$, which can be simplified by dividing numerator and denominator by 2: $\frac{18\div2}{34\div2}=\frac{9}{17}$. Wait, no, wait. Wait, the problem says "the ratio of the number of fallen dominoes to the total number of dominoes". So numerator is fallen (18), denominator is total (34). But let's check: 18 and 34 have a common factor of 2. So 18÷2=9, 34÷2=17. Wait, but maybe we don't need to simplify? Wait, the problem says "write your answer as a fraction. Use a slash (/) to separate the numerator and denominator." So original fraction is 18/34, but simplified is 9/17. Wait, let's confirm: total dominoes is 34, fallen is 18. So ratio is 18/34. Simplify: divide numerator and denominator by 2: 9/17. Yes.

Answer:

9/17