Apply the Properties of Integer Exponents to generate equivalent expressions to (7^−3) ⋅ 7^20/6^−2

with only positive exponents, then solve the expression. Provide the answer as an improper fraction.(1 point)
(7^−3) ⋅ 7^20/6^−2=

3 answers

To simplify the expression \((7^{-3}) \cdot 7^{20} / 6^{-2}\) using the properties of integer exponents, we can follow these steps:

  1. Combine the exponents of the base 7: Using the property \(a^m \cdot a^n = a^{m+n}\), we can combine \(7^{-3}\) and \(7^{20}\):

    \[ 7^{-3} \cdot 7^{20} = 7^{-3 + 20} = 7^{17} \]

  2. Simplify the expression: Now, we rewrite the entire expression, substituting \(7^{17}\) for \((7^{-3}) \cdot 7^{20}\):

    \[ \frac{7^{17}}{6^{-2}} \]

  3. Convert the negative exponent in the denominator: Recall that \(\frac{1}{a^{-m}} = a^m\). Therefore, \(6^{-2}\) in the denominator can be written as:

    \[ \frac{7^{17}}{6^{-2}} = 7^{17} \cdot 6^{2} = 7^{17} \cdot 6^{2} \]

  4. Final expression: Now we have:

    \[ 7^{17} \cdot 6^{2} \]

  5. Calculating numerical values: To calculate this, we can compute the individual components:

    • \(6^2 = 36\)
    • \(7^{17}\) is a larger number, and we will leave it in its exponential form or we can calculate it if needed.

    Thus our expression is:

    \[ 7^{17} \cdot 36 \]

  6. Conclusion: The final result can be expressed as:

    \[ \frac{7^{17} \cdot 36}{1} \]

Therefore, the simplified expression with only positive exponents is:

\[ 7^{17} \cdot 36 \]

Resulting in the answer as follows:

\[ \boxed{\frac{36 \cdot 7^{17}}{1}} \quad \text{or simply } \quad 36 \cdot 7^{17} \text{ as an improper fraction.} \]

If you require \(7^{17}\)'s numerical approximation to present a specific fraction format, it might be needed, but generally, it can remain in exponent form.

now make into an improper fraction

To express the product \(36 \cdot 7^{17}\) as an improper fraction, we need to ensure it is in the form of \(\frac{a}{b}\), with \(a\) and \(b\) as integers and \(b\) not equal to zero.

We can write \(36 \cdot 7^{17}\) as:

\[ \frac{36 \cdot 7^{17}}{1} \]

This representation is still an improper fraction since the numerator (which is \(36 \cdot 7^{17}\)) is larger than the denominator (which is 1).

If we want to keep \(36\) as part of a single expression, we can write:

\[ \frac{36 \cdot 7^{17}}{1} \]

This is an improper fraction. To give a numerical value for \(7^{17}\), it is best expressed as follows:

Calculating \(7^{17}\):

\[ 7^{17} = 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \times 7 \]

Computing this might yield a very large number. Here are the actual values of \(7^{17}\) and \(36\):

\[ 7^{17} = 23,834,668,764,117 \]

So,

\[ 36 \cdot 7^{17} = 36 \cdot 23,834,668,764,117 = 858,420,108,299,212 \]

Thus, the improper fraction is:

\[ \frac{858,420,108,299,212}{1} \]

Or simply:

\[ 858,420,108,299,212 \]

So the final answer in an improper fraction format is:

\[ \boxed{\frac{36 \cdot 7^{17}}{1}} \quad \text{or }\quad \frac{858,420,108,299,212}{1} \]

Both of these represent your answer correctly in improper fraction format.