Simplify the numerical expression. $\left( \frac { 2 ^ { - 1 } } { 7 ^ { - 2 } } \right) ^ { - 1 }$ Please enter your answer as a fraction.

Name: Simplify the numerical expression. $\left( \frac { 2 ^ { - 1 } } { 7 ^ { - 2 } } \right) ^ { - 1 }$ Please enter your answer as a fraction.
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The Answer of Simplify the numerical expression. $\left( \frac { 2 ^ { - 1 } } { 7 ^ { - 2 } } \right) ^ { - 1 }$ Please enter your answer as a fraction.

Simplify the Numerical Expression (2−17−2)−1\left( \frac { 2 ^ { - 1 } } { 7 ^ { - 2 } } \right) ^ { - 1 }(7−22−1​)−1

Simplify the Numerical Expression $\left( \frac { 2 ^ { - 1 } } { 7 ^ { - 2 } } \right) ^ { - 1 }$