Yes, unless the number used for multiplication is 0. In that case you will have 0/0 which is not defined.
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Multiply the numerator and the whole number. Put the total over the denominator. Simplify if possible.
To convert a mixed number to an improper fraction, multiply the denominator by the whole number, add that total to the numerator and put the whole thing over the original denominator. To convert an improper fraction to a decimal, divide the denominator into the numerator.
Multiply the denominator by the whole number, add that total to the numerator and put the whole thing over the original denominator.
Say you have 2 and a half you multiply the whole number by the denominator and then add the number to the numerator. You keep the same denominator as you had before and it comes out as your improper fraction.If you mean a mixed number to improper fraction, then for example:3 1/2You would multiply 2x3 and add 12x3+1(denominator times the "big" number plus numerator)
If both the numerator AND denominator are the same... the fraction is an equivalent for the number 1