When working with fractions you are pretty much dealing with a WHOLE . A fraction is an ordered pair of integer a&b, with b=/= 0, written a/b , the integer a is known as the numerator and the integer b is known as the denominator.
There are several models in which we can use to teach students how to find the answer to a problem dealing with integers. Such as Part to whole concept using the circle on the bottom as an example, whats the fraction of the figure shaded? 2/4 are shaded, that can be worked down to 1/2 of the circle being shaded. Below is a link for more additional information
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