\frac { 15 } { 17 } = \frac { x } { 8,5 }
Solve for x
x=7,5
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\frac{15}{17}\times 8,5=x
Multiply both sides by 8,5.
\frac{15}{17}\times \frac{17}{2}=x
Convert decimal number 8,5 to fraction \frac{85}{10}. Reduce the fraction \frac{85}{10} to lowest terms by extracting and canceling out 5.
\frac{15\times 17}{17\times 2}=x
Multiply \frac{15}{17} times \frac{17}{2} by multiplying numerator times numerator and denominator times denominator.
\frac{15}{2}=x
Cancel out 17 in both numerator and denominator.
x=\frac{15}{2}
Swap sides so that all variable terms are on the left hand side.
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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