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Math Help - Basic Fraction Algebra

  1. #1
    Member cmf0106's Avatar
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    Basic Fraction Algebra

    Trying to help my little brother through this particular problem but im stumped. In the book it says the correct answer is \frac{4x}{9} , ive gone through all the rest of his example problems but have been able to solve them successfully.

    \frac{10}{3}*\frac{2x}{15}

    LCD
    15

    \frac{10}{3}*\frac{5}{5} * \frac{2x}{15}*\frac{1}{1} = \frac{50+2x}{15}

    Thanks
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  2. #2
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    10 * 2x = 20x
    3 * 15 = 45

    When facing a multiplication of two fractions, you can simply multiply both numerators together and both denominators together. You'll end up having one fraction, that you can eventually simplify.

    20x/45 = 4x/9
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  3. #3
    Member cmf0106's Avatar
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    Quote Originally Posted by Sodapop View Post
    10 * 2x = 20x
    3 * 15 = 45

    When facing a multiplication of two fractions, you can simply multiply both numerators and both denominators togheter. You'll end up having one fraction, that you can eventually simplify.

    20x/45 = 4x/9
    Thanks! And I cant believe I glossed over that. I suppose thats what happens when you get off a double shift.
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  4. #4
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    Quote Originally Posted by cmf0106 View Post
    Thanks! And I cant believe I glossed over that. I suppose thats what happens when you get off a double shift.
    As I always said, simple things can sometimes be harder than the tough ones. And I have proven this, with life experiments.
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