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An algebraic way of turning a mixed number into a fraction is (as described in your question): a b/c = (ac + b)/c

This works because ac/c = a (the c will cancel itself out.) just like how 50/50 = 1, and (5*15)/5 = 15. You're basically multiplying a by c/c, which is 1.

When you add fractions with the same denominator, you simply add the numerators together.

Thus, a b/c = ac/c + b/c = (ac + b)/c

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Q: When rewriting a mixed number as a fraction why do you multiply the who number by the denominator of the fraction?
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What is the definition of cross product?

taking two fractions. and cross multiply. all fraction has a numerator (top number) and a denominator (bottom number). multiply the numerator to the other fraction's denominator and the denominator to the other fraction's numerator to get the product.


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You get the square of the the number.


What kind of number will you get if you multiply the numerator and the denominator of a fraction by the same number?

You will get an equivalent fraction. However, if the numerator and the denominator of a fraction by zero, the result is not defined.


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When multiplying a fraction by a whole number do you multiply the denominator?

No, you don't.


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No because you have too multiply the numerator and denominator by the the same number to have an equivalent fraction.


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Take the fraction you have, and multiply the numerator and denominator by the same number.


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