ACT Math : How to express a fraction as a ratio
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Example Question #72 : Fractions
When television remotes are shipped from a certain factory, 1 out of every 200 is defective. What is the ratio of defective to nondefective remotes?
199:1
200:1
1:199
1:200
1:199
One remote is defective for every 199 non-defective remotes.
Example Question #1 : How To Express A Fraction As A Ratio
On a desk, there are 
Begin by making your life easier: presume that there are 
By cross-multiplying you get:
Solving for 
(Many students will likely see this fact without doing the algebra, however. The numbers are rather simple.)
Now, this means that our desk has on it:
Therefore, you have 
Example Question #31 : Fractions
In a classroom of 
To begin, you need to calculate how many students are taking Old Norse. This is:
Now, the ratio of students taking Old Norse to students taking Greek is the same thing as the fraction of students taking Old Norse to students taking Greek, or:
Next, just reduce this fraction to its lowest terms by dividing the numerator and denominator by their common factor of 
This is the same as 
Example Question #81 : Fractions
In a garden, there are 
To begin, you need to do a simple addition to find the total number of flowers in the garden:
Now, the ratio of petunias to the total number of flowers in the garden can be represented by a simple division of the number of petunias by 
Next, reduce the fraction by dividing out the common 
This is the same as 
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