Evaluate
\frac{25R}{2}+30
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\frac{25R}{2}+30
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6\left(\frac{5\times 4}{4}+\frac{5R}{4}\right)+5R
To add or subtract expressions, expand them to make their denominators the same. Multiply 5 times \frac{4}{4}.
6\times \frac{5\times 4+5R}{4}+5R
Since \frac{5\times 4}{4} and \frac{5R}{4} have the same denominator, add them by adding their numerators.
6\times \frac{20+5R}{4}+5R
Do the multiplications in 5\times 4+5R.
\frac{6\left(20+5R\right)}{4}+5R
Express 6\times \frac{20+5R}{4} as a single fraction.
\frac{6\left(20+5R\right)}{4}+\frac{4\times 5R}{4}
To add or subtract expressions, expand them to make their denominators the same. Multiply 5R times \frac{4}{4}.
\frac{6\left(20+5R\right)+4\times 5R}{4}
Since \frac{6\left(20+5R\right)}{4} and \frac{4\times 5R}{4} have the same denominator, add them by adding their numerators.
\frac{120+30R+20R}{4}
Do the multiplications in 6\left(20+5R\right)+4\times 5R.
\frac{120+50R}{4}
Combine like terms in 120+30R+20R.
6\left(\frac{5\times 4}{4}+\frac{5R}{4}\right)+5R
To add or subtract expressions, expand them to make their denominators the same. Multiply 5 times \frac{4}{4}.
6\times \frac{5\times 4+5R}{4}+5R
Since \frac{5\times 4}{4} and \frac{5R}{4} have the same denominator, add them by adding their numerators.
6\times \frac{20+5R}{4}+5R
Do the multiplications in 5\times 4+5R.
\frac{6\left(20+5R\right)}{4}+5R
Express 6\times \frac{20+5R}{4} as a single fraction.
\frac{6\left(20+5R\right)}{4}+\frac{4\times 5R}{4}
To add or subtract expressions, expand them to make their denominators the same. Multiply 5R times \frac{4}{4}.
\frac{6\left(20+5R\right)+4\times 5R}{4}
Since \frac{6\left(20+5R\right)}{4} and \frac{4\times 5R}{4} have the same denominator, add them by adding their numerators.
\frac{120+30R+20R}{4}
Do the multiplications in 6\left(20+5R\right)+4\times 5R.
\frac{120+50R}{4}
Combine like terms in 120+30R+20R.
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}