For this case we must express as a single fraction the following expression:[tex]\frac {1} {a} + \frac {2} {b} + \frac {3} {c}[/tex]
We have that the common denominator of the three fractions is given by: abc
So, to express as a fraction we divide abc by each denominator and multiply by each numerator, obtaining:
[tex]\frac {bc + 2ac + 3ab} {abc}[/tex]
Answer:
[tex]\frac {bc + 2ac + 3ab} {abc}[/tex]
