The first step is learning what it means to divide. Why is it done? How does it work?
Explain to your child that you have 100 jellybeans and you want to give them away to 5 children.
How do you make it a fair split? You could ask.
We need to know how we can split the 100 jellybeans in to 5 groups for each child.
Well we could go around the circle and give 1 over and over until we get the result. Or we could use a calculator to split it 5 ways evenly.
100 split (or divided) in to 5 groups is 20 we will find.
So we know we can give 20 jellybeans to each child ad know its right.
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complex
"conjugate" That step is called "rationalizing the denominator", although it actually makes the denominator 'real', but not necessarily 'rational'.
You multiply both the numerator and denominator my the complex conjugate of the denominator. For example if you have. a+bi/c+di you would multiply both the top and bottom by c-di. This is in effect multiplying by 1.
You cannot find the first 15 prime numbers by dividing by 2 and 3. This method would not identify 25 as being a composite.
what is the definition for dividing mixed numbers