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SUBTRACT MIXED NUMBES WITHOUT RENAMING
When subtracting mixed numbers, subtract the fractions,
subtract the whole
numbers, then reduce (if necessary).
Ex. 1.
Subtract fractions  Subtract whole numbers  
Ex. 2.
Before subtracting the fractions, the LCD
must be found.
Convert to LCD  Subtract Fractions  Subtract whole numbers  Reduce 
if needed 
Ex. 3.
Before subtracting the fractions, the LCD
must be found.
Convert to LCD  Subtract Fractions  Subtract whole numbers  Reduce 

PRACTICE: Subtract Mixed Numbers

Objective 4: SUBTRACT MIXED NUMBERS WITH RENAMING .
Sometimes a larger fraction is being subtracted from a
smaller fraction.
In this case, it is necessary to borrow "1" from the whole number portion
of the mixed number.
Ex. 1. Before subtracting, change the
Change the mixed number it into the improper
fraction
Subtract fractions  Subtract whole numbers  Reduce 
If the fractions have different denominators as in the following:
Ex. 2.
First Convert to LCD
7 1(4)
Since 4/20 is smaller than 5/20 it is necessary to borrow
1 from the 7
before subtracting.
This step is accomplished by changing the
Now, change to the improper fraction
Subtract Fractions  Subtract Whole Numbers 
Sometimes a mixed number is being subtracted from a whole
number.
In this case, it is necessary to borrow "1" from the whole number portion.
Ex. 1.
Before subtracting, change the 8 to 7 + 1
Change the "1" into the improper fraction
Subtract fractions  Subtract whole numbers 

PRACTICE: SUBTRACT MIXED NUMBERS

SUBTRACTION OF FRACTIONS AND MIXED NUMBERS
ANSWERS TO PRACTICE PROBLEMS
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