Rationalize the denominatar

**zbest1966** · June 2nd 2012, 11:09 AM

1. x/y^2/5

2. 1/c^3/7

**Soroban** · June 2nd 2012, 11:30 AM

Hello, zbest1966!

$\text{Rationalize the denominator:}$

. . $(1)\;\frac{x}{y^{\frac{2}{5}}}$

$\frac{x}{y^{\frac{2}{5}}}\cdot {\color{red}\frac{y^{\frac{3}{5}}}{y^{\frac{3}{5}} }} \;=\;\frac{xy^{\frac{3}{5}}}{y}$

$(2)\;\frac{1}{c^{\frac{3}{7}}}$

$\frac{1}{c^{\frac{3}{7}}} \cdot {\color{red}\frac{c^{\frac{4}{7}}}{c^{\frac{4}{7}} }} \;=\;\frac{c^{\frac{4}{7}}}{c}$

**zbest1966** · June 2nd 2012, 01:23 PM

I did a problem simpler to that is this rite

a/cubic sqrt root b²
A . cubic sqrt root b/b

Thread: Rationalize the denominatar