Subtracting a Fraction from a Whole Number
Say we want to subtract:
The first thing we do is change 5 to a fraction. It becomes the fraction 5/1. Now we subtract fractions like any other. We multiply:
because the lowest common denominator is 3. We can do this because 3/3 = 1 and we know that multiplying a number by 1 doesn't change the number. Now we subtract:
What do you need help with? Click on one of the following topics...
What is a fraction?
Subtracting a fraction from a whole number
Multiplying a fraction and a whole number
Dividing a fraction and a whole number
What is a reciprocal?
Changing a fraction to a percentage
Changing a percentage to a fraction
Rounding to a whole number
Finding the lowest common denominator
Reducing a fraction
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