Solve for I
I = \frac{20}{9} = 2\frac{2}{9} \approx 2.222222222
Share
Copied to clipboard
\frac{\frac{9+7}{9}}{\frac{4}{5}}=1I
Multiply 1 and 9 to get 9.
\frac{\frac{16}{9}}{\frac{4}{5}}=1I
Add 9 and 7 to get 16.
\frac{16}{9}\times \frac{5}{4}=1I
Divide \frac{16}{9} by \frac{4}{5} by multiplying \frac{16}{9} by the reciprocal of \frac{4}{5}.
\frac{16\times 5}{9\times 4}=1I
Multiply \frac{16}{9} times \frac{5}{4} by multiplying numerator times numerator and denominator times denominator.
\frac{80}{36}=1I
Do the multiplications in the fraction \frac{16\times 5}{9\times 4}.
\frac{20}{9}=1I
Reduce the fraction \frac{80}{36} to lowest terms by extracting and canceling out 4.
1I=\frac{20}{9}
Swap sides so that all variable terms are on the left hand side.
I=\frac{20}{9}
Reorder the terms.
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}