Fractions are written as the ratio of two integers. 8.4km^2 of her property are covered in trees
<h3>Ratios and proportions</h3>
Fractions are written as the ratio of two integers
Given the following parameters
total area of open field = 21km^2
If 2/5 of Joys cottage property is covered with trees, the amount covered in trees is expressed as:
Amount covered in trees = 2/5 * 21
Amount covered in trees = 42/5
Amount covered in trees = 8.4km^2
Hence 8.4km^2 of her property are covered in trees
Learn more on ratio here: brainly.com/question/2328454
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