Question

How to add the rational expression 12/7d -3/14d

Answer 1

Answer:

$\frac{3}{2d}$

Step-by-step explanation

our given expression is = $\frac{12}{7d}-\frac{3}{14d}$

In order to simplify first of lets make the denominator of both the fractions same by multiplying and dividing with some number.

Lets multiply and divide our first fraction by 2 in order to make denominator of both the fractions same.

= $\frac{2}{2}\frac{12}{7d}-\frac{3}{14d}$

=$\frac{24}{14d}-\frac{3}{14d}$

Now taking LCM of both fractions

= $\frac{24-3}{14d}$

Simplifying further

=$\frac{21}{14d} = \frac{3}{2d}$

So out correct answer is $\frac{3}{2d}$