Evaluate
\frac{29}{30}-\frac{4}{5a}
Expand
\frac{29}{30}-\frac{4}{5a}
Graph
Share
Copied to clipboard
\frac{\left(2a-3\right)\times 10x}{30ax}+\frac{\left(3x+2\right)\times 3a}{30ax}+\frac{x-a}{5ax}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 3a and 10x is 30ax. Multiply \frac{2a-3}{3a} times \frac{10x}{10x}. Multiply \frac{3x+2}{10x} times \frac{3a}{3a}.
\frac{\left(2a-3\right)\times 10x+\left(3x+2\right)\times 3a}{30ax}+\frac{x-a}{5ax}
Since \frac{\left(2a-3\right)\times 10x}{30ax} and \frac{\left(3x+2\right)\times 3a}{30ax} have the same denominator, add them by adding their numerators.
\frac{20ax-30x+9xa+6a}{30ax}+\frac{x-a}{5ax}
Do the multiplications in \left(2a-3\right)\times 10x+\left(3x+2\right)\times 3a.
\frac{29ax-30x+6a}{30ax}+\frac{x-a}{5ax}
Combine like terms in 20ax-30x+9xa+6a.
\frac{29ax-30x+6a}{30ax}+\frac{6\left(x-a\right)}{30ax}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 30ax and 5ax is 30ax. Multiply \frac{x-a}{5ax} times \frac{6}{6}.
\frac{29ax-30x+6a+6\left(x-a\right)}{30ax}
Since \frac{29ax-30x+6a}{30ax} and \frac{6\left(x-a\right)}{30ax} have the same denominator, add them by adding their numerators.
\frac{29ax-30x+6a+6x-6a}{30ax}
Do the multiplications in 29ax-30x+6a+6\left(x-a\right).
\frac{29ax-24x}{30ax}
Combine like terms in 29ax-30x+6a+6x-6a.
\frac{x\left(29a-24\right)}{30ax}
Factor the expressions that are not already factored in \frac{29ax-24x}{30ax}.
\frac{29a-24}{30a}
Cancel out x in both numerator and denominator.
\frac{\left(2a-3\right)\times 10x}{30ax}+\frac{\left(3x+2\right)\times 3a}{30ax}+\frac{x-a}{5ax}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 3a and 10x is 30ax. Multiply \frac{2a-3}{3a} times \frac{10x}{10x}. Multiply \frac{3x+2}{10x} times \frac{3a}{3a}.
\frac{\left(2a-3\right)\times 10x+\left(3x+2\right)\times 3a}{30ax}+\frac{x-a}{5ax}
Since \frac{\left(2a-3\right)\times 10x}{30ax} and \frac{\left(3x+2\right)\times 3a}{30ax} have the same denominator, add them by adding their numerators.
\frac{20ax-30x+9xa+6a}{30ax}+\frac{x-a}{5ax}
Do the multiplications in \left(2a-3\right)\times 10x+\left(3x+2\right)\times 3a.
\frac{29ax-30x+6a}{30ax}+\frac{x-a}{5ax}
Combine like terms in 20ax-30x+9xa+6a.
\frac{29ax-30x+6a}{30ax}+\frac{6\left(x-a\right)}{30ax}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 30ax and 5ax is 30ax. Multiply \frac{x-a}{5ax} times \frac{6}{6}.
\frac{29ax-30x+6a+6\left(x-a\right)}{30ax}
Since \frac{29ax-30x+6a}{30ax} and \frac{6\left(x-a\right)}{30ax} have the same denominator, add them by adding their numerators.
\frac{29ax-30x+6a+6x-6a}{30ax}
Do the multiplications in 29ax-30x+6a+6\left(x-a\right).
\frac{29ax-24x}{30ax}
Combine like terms in 29ax-30x+6a+6x-6a.
\frac{x\left(29a-24\right)}{30ax}
Factor the expressions that are not already factored in \frac{29ax-24x}{30ax}.
\frac{29a-24}{30a}
Cancel out x in both numerator and denominator.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}