Evaluate
\frac{28}{13}\approx 2.153846154
Factor
\frac{2 ^ {2} \cdot 7}{13} = 2\frac{2}{13} = 2.1538461538461537
Share
Copied to clipboard
\begin{array}{l}\phantom{13)}\phantom{1}\\13\overline{)28}\\\end{array}
Use the 1^{st} digit 2 from dividend 28
\begin{array}{l}\phantom{13)}0\phantom{2}\\13\overline{)28}\\\end{array}
Since 2 is less than 13, use the next digit 8 from dividend 28 and add 0 to the quotient
\begin{array}{l}\phantom{13)}0\phantom{3}\\13\overline{)28}\\\end{array}
Use the 2^{nd} digit 8 from dividend 28
\begin{array}{l}\phantom{13)}02\phantom{4}\\13\overline{)28}\\\phantom{13)}\underline{\phantom{}26\phantom{}}\\\phantom{13)9}2\\\end{array}
Find closest multiple of 13 to 28. We see that 2 \times 13 = 26 is the nearest. Now subtract 26 from 28 to get reminder 2. Add 2 to quotient.
\text{Quotient: }2 \text{Reminder: }2
Since 2 is less than 13, stop the division. The reminder is 2. The topmost line 02 is the quotient. Remove all zeros at the start of the quotient to get the actual quotient 2.
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}