Question

1/a+2/b+3/c; Express as a single fraction.

Answer 1

Answer: (bc+2ac+3ab)/(abc)

Answer 2

For this case we must express as a single fraction the following expression:$\frac {1} {a} + \frac {2} {b} + \frac {3} {c}$

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:

$\frac {bc + 2ac + 3ab} {abc}$

Answer:

$\frac {bc + 2ac + 3ab} {abc}$