Solve for x
x=\frac{21}{29}\approx 0.724137931
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\frac{21}{20}\times \frac{20}{29}=x
Multiply both sides by \frac{20}{29}.
\frac{21\times 20}{20\times 29}=x
Multiply \frac{21}{20} times \frac{20}{29} by multiplying numerator times numerator and denominator times denominator.
\frac{21}{29}=x
Cancel out 20 in both numerator and denominator.
x=\frac{21}{29}
Swap sides so that all variable terms are on the left hand side.
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