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mscrosscountry

  • 4 years ago

Simplify. Express the quotient as a rational exponent. x to the 4 fifths power over x to the 1 third power

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  1. philips13
    • 4 years ago
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    Is this it? \[x^{4/5} \over x^{1/3}\]

  2. mscrosscountry
    • 4 years ago
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    yes

  3. brinethery
    • 4 years ago
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    http://tutorial.math.lamar.edu/Classes/Alg/IntegerExponents.aspx Property 3. a^m/a^n = a^(m-n)

  4. brinethery
    • 4 years ago
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    Get both fractions so that they have a common denominator and then subtract them.

  5. mscrosscountry
    • 4 years ago
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    is it x 4/15?

  6. philips13
    • 4 years ago
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    \[x^{4/5}x^{-1/3}\]

  7. brinethery
    • 4 years ago
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    I think like x^7/15

  8. mscrosscountry
    • 4 years ago
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    x 3/2?

  9. mscrosscountry
    • 4 years ago
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    here are my options: x3/2 x7/15 x17/15 x4/15

  10. philips13
    • 4 years ago
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    bri is right the exponent is 4/5 - 1/3

  11. mscrosscountry
    • 4 years ago
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    so 3/2

  12. philips13
    • 4 years ago
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    remember how to subtract fractions? Least common denominator?

  13. philips13
    • 4 years ago
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    fancy way of saying make the numbers on the bottom the same before you can subtract

  14. brinethery
    • 4 years ago
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    What's 12/15 - 5/15?

  15. mscrosscountry
    • 4 years ago
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    7/15 okay i understand now

  16. brinethery
    • 4 years ago
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    Make sure you know how to add and subtract fractions, it's very important.

  17. brinethery
    • 4 years ago
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    good luck!

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