Solve 3/5a+4/a

$$\frac { 3 } { 5 a } + \frac { 4 } { a }$$

Evaluate

$$\frac{23}{5a}$$

Short Solution Steps

To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 5a and a is 5a. Multiply \frac{4}{a} times \frac{5}{5}.

$$\frac{3}{5a}+\frac{4\times 5}{5a}$$

Since \frac{3}{5a} and \frac{4\times 5}{5a} have the same denominator, add them by adding their numerators.

$$\frac{3+4\times 5}{5a}$$

Do the multiplications in 3+4\times 5.

$$\frac{3+20}{5a}$$

Do the calculations in 3+20.

$$\frac{23}{5a}$$

Differentiate w.r.t. a

$$-\frac{23}{5a^{2}}$$