Solve for k
k=4
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\frac{48}{30}k=6.4
Expand \frac{4.8}{3} by multiplying both numerator and the denominator by 10.
\frac{8}{5}k=6.4
Reduce the fraction \frac{48}{30} to lowest terms by extracting and canceling out 6.
k=6.4\times \frac{5}{8}
Multiply both sides by \frac{5}{8}, the reciprocal of \frac{8}{5}.
k=\frac{32}{5}\times \frac{5}{8}
Convert decimal number 6.4 to fraction \frac{64}{10}. Reduce the fraction \frac{64}{10} to lowest terms by extracting and canceling out 2.
k=\frac{32\times 5}{5\times 8}
Multiply \frac{32}{5} times \frac{5}{8} by multiplying numerator times numerator and denominator times denominator.
k=\frac{32}{8}
Cancel out 5 in both numerator and denominator.
k=4
Divide 32 by 8 to get 4.
Examples
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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