Evaluate
y = \frac{30}{7} = 4\frac{2}{7} = 4.285714285714286
Expand
y = \frac{30}{7} = 4\frac{2}{7} = 4.285714285714286
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\frac{28+2}{7}+y
Multiply 4 and 7 to get 28.
\frac{30}{7}+y
Add 28 and 2 to get 30.
\frac{28+2}{7}+y
Multiply 4 and 7 to get 28.
\frac{30}{7}+y
Add 28 and 2 to get 30.
Examples
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Matrix
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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 ) }
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Limits
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