Can someone tell me if I worked this complex fraction right?
x^4
-----
y^3
------------
x^3
-----
y^8
My answer was x^15y^24. I have a pretty strong feeling that it's wrong, though. Can someone help me?
2007-06-24 11:16:54 · 4 answers · asked by wrongnumber 1 in Education & Reference ➔ Homework Help
x^4
-----
y^3
------------
x^3
-----
y^8
equals
x^4 y^8
----- times -----
y^3 x^3
which equals
x^4(y^8)
----------
x^3(y^3)
when dividing, you subtract the exponents
since 4-3=1
x^1 is up as a numerator since 1 is positive
since 8-3=5
y^5 is up as a numerator since 5 is positive
your final answer is
x^1y^5
if your exponent is negative, then it'd be written as the denominator to make it positive
2007-06-24 11:23:22 · answer #1 · answered by Carmen 4 · 0⤊ 0⤋
Rewrite as (x^4 / y^3) x (y^8 / x^3) = (cross and multiply)=xy^5
2007-06-24 11:36:23 · answer #2 · answered by mathvideosonline.com 2 · 0⤊ 0⤋
It would equal x^4/y^3 times y^8/x^3, which would be x^4y^8/x^3y^3, or xy^5
2007-06-24 11:34:51 · answer #3 · answered by Judy 7 · 0⤊ 0⤋
To divide fractions invert and multiply
x4 y8
---x---- = xy5
y3 x3
2007-06-24 11:30:38 · answer #4 · answered by H.E. G 4 · 0⤊ 0⤋