Question 732181
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simplify this expression(12)/(7d)-(3)/(14d)
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<pre>
      {{{(12)/(7d)}}} - {{{(3)/(14d)}}}  --->  write with the common denominator 14d  --->

    = {{{24/(14d)}}} - {{{3/(14d)}}}  --->  work with this common denominator  ---> 

    = {{{(24-3)/(14d)}}} = {{{21/(14d)}}}  --->  cancel common factor 7  ---> 

    = {{{3/(2d)}}}.    <U>ANSWER</U>
</pre>

Solved.


It is the story on how to do it.