Simplify the Fraction: 1/(2⁷ × 9⁷ × 5⁷) Expression

Question

Insert the corresponding expression:

127×97×57= \frac{1}{2^7\times9^7\times5^7}=

Video Solution

Solution Steps

00:00 Simplify the following problem
00:03 Break down the fraction into 3 smaller fractions
00:12 Apply the exponent laws in order to simplify the negative exponents
00:15 Convert to the reciprocal number and raise to the power of (-1)
00:19 Apply this formula to our exercise
00:29 Raise to the power of (-1)
00:48 Convert to the reciprocal number (1 divided by the number)
01:14 This is the solution

Step-by-Step Solution

To transform the given expression into one involving negative exponents, we work as follows:

Given expression: 127×97×57 \frac{1}{2^7 \times 9^7 \times 5^7}

Utilizing the negative exponent rule, 1an=an \frac{1}{a^n} = a^{-n} , we transform each term in the denominator:

  • Convert 27 2^7 to 27 2^{-7}
  • Convert 97 9^7 to 97 9^{-7}
  • Convert 57 5^7 to 57 5^{-7}

Thus, the expression becomes:

27×97×57 2^{-7} \times 9^{-7} \times 5^{-7}

This expression corresponds to applying the negative exponent formula to each factor from the denominator.

Therefore, the solution to the problem is 27×97×57 2^{-7} \times 9^{-7} \times 5^{-7} .

Answer

27×97×57 2^{-7}\times9^{-7}\times5^{-7}