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Yr 7 Fractions

Revision of the basics

QuestionAnswer
The denominator is the number at the bottom of the fraction ( d=down)
The numerator is the number at the top of a fraction
The vinculum is the line between the top ( numerator) and bottom ( denominator)
A mixed number is made up of a whole number and a fraction = 1 & 1/2
A proper fraction is where the smaller number is on the top
An improper fraction is where the larger number is on the top
A denominator tells us how many parts it is evenly broken up into
An equivalent fraction is a fraction that has the same value but is made up of different sizes
A simplified fraction is a fraction in it's easiest, smallest size to use = 8/16 = 1/2, 6/9 = 2/3
Rule: what you do to the top- do to the bottom
Rule: what you do to the bottom- do to the top
In addition and subtraction of fractions the denominators must always be the same
Multiplying fractions are easy- the rule is top by top, bottom by bottom
How do we make denominators the same? times them by each other- or- see what number they will both go into
What's a multiple? A number that a number can be multiplied into
What's a factor? A number that goes into another number evenly
what is the opposite (or inverse) of the fraction 7/8? 8/7
Created by: nicolenixon
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