Working with fractions reminds me of PIZZA.
+ or - fractions = common denominator (Bottom number)
Reducing means simplifying - are any of the umbers divisible by another number?
x fractions = x top, x bottom (no need for common denominator).
Improper (top heavy_ i.e. 9/2) conversions to mixed fractions = divide
Mixed fractions to improper fractions = x 11/2 = 3/2
I get it.
It always helps to look at other sources when you learning something new:
http://jamit.com.au/htmlFolder/FRAC1003.html#MixedToImproper
http://www.mathsisfun.com/mixed-fractions-multiply.html
Dividing a whole number by a fraction
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