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Lesson 3: What fractions mean

# Recognize fractions

Sal uses fractions to name parts of a whole. Created by Sal Khan.

## Want to join the conversation?

• if you have fractions when in life would you need to use equivalent fractions ?
• If you wanted to divide something into equal parts...say you have six guests over and you are cutting it out and mom asks how much is left and there is 1/6 left.....without fractions you would be in a dilemma....does that help?
• If I had 7 pet fishes 3 of them are red and 4 are gold how would I write this in fraction form and include all the given information (7 pets,3 red and 4 gold)
• One way to put this information in fraction form is 3/7 and 4/7 since 7 is the denominator which is the total number and the three and four are parts of 7.
• I don't really get it but i'm working on it!!
• The denominator is the bottom which is the total of slices. The numerator is the top which is the shaded parts.
• if there are fractions in my pie, but all the parts are not equal, does it still count as fractions?
• If the fraction is like 1/9 is it unit or proper fraction?
(1 vote)
• 1/9 is a proper fraction.
A proper fraction is any fraction where the numerator is less than the denominator. (like 1/9).
An improper fraction is any fraction where the numerator is greater than the denominator. (like 10/9).
A unit only refers to a fraction where the numerator and denominator are equal. (like 9/9).
• How do you represent the last example then, given that it isn't 3/4.
• technically it cannot be represented as a fraction as the parts are not equal.
(1 vote)
• 1/9 is a proper fraction.
A proper fraction is any fraction where the numerator is less than the denominator. (like 1/9).
An improper fraction is any fraction where the numerator is greater than the denominator. (like 10/9).
A unit only refers to a fraction where the numerator and denominator are equal. (like 9/9).
• 1/9 is a proper fraction.
A proper fraction is any fraction where the numerator is less than the denominator. (like 1/9).
An improper fraction is any fraction where the numerator is greater than the denominator. (like 10/9).
A unit only refers to a fraction where the numerator and denominator are equal. (like 9/9).
• yes. you want to imagine proper fraction as slicing the number in an informational way. then measureing the distance for one slice. or with inproper fraction you just grab a bit of something else and count how often you did that. and if it doesnt fit (decimal) then you count how much you WOULD have grapped if it fit. so you still grab an equal group but just a tiny part of it that would still be an equal split. think 10 / 3. group 3 groups first. groupcount=3 but theres a bit left. 1/3. we slice this bit because its a proper fraction then we count the smaller piece to the groupcount. 3 + 1/3. fair enough.
(1 vote)
• Can two halves be called a whole?