Question 621500
Hi, there--
.
Add. Simplify if possible.
.
{{{(2/vz^2) + (9/v^2z)}}}
.
Even though you have a couple of variables here, you are basically adding together to fractions. Just like in elementary school, in order to add fractions they must have the same denominator.
.
I notice that fractions have the variables v and z raised to different powers in the denominator. I can pretty easily make a common denominator of {{{v^2z^2}}} . Multiply the first fraction by v/v and multiply the second fraction by z/z.
.
{{{(2/vz^2)*(v/v)+(9/v^2z)*(z/z)}}}
.
Simplify by combining like terms. Remember, when we multiply exponential expressions we add the exponents.
.
{{{2v/v^2z^2+9z/v^2z^2}}}
.
Now we add two fractions with the same denominator. Add the numerators; the denominators stay the same.
.
{{{(2v+9x)/v^2z^2}}}
.
Hope this helps. Feel free to email if there's any part that doesn't make sense yet.
.
Ms.Figgy
math.in.the.vortex@gmail.com