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Fractions . Why do we need fractions?. Roughly speaking, a fraction is a quantity that cannot be represented by a whole number. Consider the following scenario. Can you finish the whole cake? If not, how much of the cake did you eat? 1 is not the answer, neither is 0.
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Why do we need fractions? Roughly speaking, a fraction is a quantity that cannot be represented by a whole number. Consider the following scenario. Can you finish the whole cake? If not, how much of the cake did you eat? 1 is not the answer, neither is 0. This suggests that we need a new kind of number.
Parts of a Fraction 3 = the number of parts 4 = the total number of parts that equal a whole
Parts of a Fraction 3 = numerator 4 = denominator
Which number is Encircled? 3 4 = denominator
Which number is Encircled? 3 = numerator 4
¾ looks like 1/4 1/4 3 4 1/4
¾ looks like 1/4 3 1/4 4 1/4
¾ looks like 1/4 1/4 3 4 1/4
Mixed Number • A mixed number has a part that is a whole number and a part that is a fraction. 3 1 = 4
What is the mixed number? 3 = 3 4
Improper Fraction • A fraction in which the numerator is greater than the denominator. 8 = 4