Evaluate
\frac{3h}{4\left(h+4\right)}
Factor
\frac{3h}{4\left(h+4\right)}
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-\frac{3\times 4}{4\left(h+4\right)}+\frac{3\left(h+4\right)}{4\left(h+4\right)}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 4+h and 4 is 4\left(h+4\right). Multiply -\frac{3}{4+h} times \frac{4}{4}. Multiply \frac{3}{4} times \frac{h+4}{h+4}.
\frac{-3\times 4+3\left(h+4\right)}{4\left(h+4\right)}
Since -\frac{3\times 4}{4\left(h+4\right)} and \frac{3\left(h+4\right)}{4\left(h+4\right)} have the same denominator, add them by adding their numerators.
\frac{-12+3h+12}{4\left(h+4\right)}
Do the multiplications in -3\times 4+3\left(h+4\right).
\frac{3h}{4\left(h+4\right)}
Combine like terms in -12+3h+12.
\frac{3h}{4h+16}
Expand 4\left(h+4\right).
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