Write as a single fraction.
-1 +(2c+5d)/(3c) - (c-9d)/(6c)

Question

Write as a single fraction.
-1 +(2c+5d)/(3c) - (c-9d)/(6c)

anonymous · Answer

119d-3c
--------
6c

anonymous · Answer

i got    d-3c / 6c

zepdrix · Answer

$$\large -1+\frac{(2c+5d)}{3c}-\frac{(c-9d)}{6c}$$

Getting a common denominator gives us,$$\large -\frac{6c}{6c}+\frac{2(2c+5d)}{6c}-\frac{(c-9d)}{6c}$$
$$\large \frac{-6c+4c+10d-c+9d}{6c}$$

$$\large =\frac{19d-3c}{6c}$$
@jtabby I think you forgot to distribue the - to each term in the brackets on the last part.$$\large -(c-9d) \quad = \quad -c+9d$$

anonymous · Answer

ohhh yes i did forget to distribute the negative sign! thank you so much!  and how do you make it formatted all nicely like that?

zepdrix · Answer

When you want to enter a message, there are several helpful tools at the bottom.
Equation, Draw, Attach File.

I entered that text into the Equation tool.
It's based off the LaTeX Formatting Language.

There are a lot of helpful buttons in the Equation tool, but it takes a little practice to get comfortable with it. :)