the fraction is (5^-3)^6 times 5^17 / 10^-2.

1 answer

To simplify the expression \((5^{-3})^6 \times 5^{17} / 10^{-2}\), let's break it down step by step.

  1. Simplify \((5^{-3})^6\): \[ (5^{-3})^6 = 5^{-18} \]

  2. Now substitute this back into the expression: \[ 5^{-18} \times 5^{17} / 10^{-2} \]

  3. Use the property of exponents that states \(a^m \times a^n = a^{m+n}\): \[ 5^{-18} \times 5^{17} = 5^{-18 + 17} = 5^{-1} \]

  4. Now our expression looks like this: \[ \frac{5^{-1}}{10^{-2}} \]

  5. Since \(10^{-2} = (2 \times 5)^{-2} = 2^{-2} \times 5^{-2}\), we have: \[ 10^{-2} = \frac{1}{10^2} = \frac{1}{100} \]

  6. Thus, we can rewrite the fraction: \[ \frac{5^{-1}}{10^{-2}} = 5^{-1} \times 10^2 = 5^{-1} \times 100 \]

  7. Now express \(5^{-1}\) as \(\frac{1}{5}\): \[ \frac{1}{5} \times 100 = \frac{100}{5} = 20 \]

So, the simplified result of the given expression \((5^{-3})^6 \times 5^{17} / 10^{-2}\) is: \[ \boxed{20} \]