Simplify the Complex Fraction: (2⁴×3⁵)/(7⁴×11⁵)

Question

Insert the corresponding expression:

24×3574×115= \frac{2^4\times3^5}{7^4\times11^5}=

Video Solution

Solution Steps

00:00 Simplify the following problem
00:03 According to the laws of exponents, a fraction raised to the power (N)
00:08 is equal to a fraction where both the numerator and denominator are raised to the power (N)
00:11 We will apply this formula to our exercise, in the reverse direction
00:14 We'll break it into 2 separate fractions, place inside of parentheses and raise to the power
00:25 This is the solution

Step-by-Step Solution

To solve the problem, we will utilize the properties of exponents to express the given fraction properly.

The given expression is 24×3574×115 \frac{2^4 \times 3^5}{7^4 \times 11^5} . Our goal is to rewrite this expression using properties of exponents.

Let's break it down into two separate expressions based on the properties of division of exponents:

  • 2474=(27)4\frac{2^4}{7^4} = \left(\frac{2}{7}\right)^4 because ambm=(ab)m\frac{a^m}{b^m} = \left(\frac{a}{b}\right)^m.
  • 35115=(311)5\frac{3^5}{11^5} = \left(\frac{3}{11}\right)^5 for the same reasons as above.

By rewriting the original expression using these properties, we have:

24×3574×115=(27)4×(311)5 \frac{2^4 \times 3^5}{7^4 \times 11^5} = \left(\frac{2}{7}\right)^4 \times \left(\frac{3}{11}\right)^5 .

Therefore, the expression can be rewritten as (27)4×(311)5 \left(\frac{2}{7}\right)^4 \times \left(\frac{3}{11}\right)^5 . This corresponds to choice 3 in the provided options.

The correct transformation of the expression is effectively represented and confirmed with the properties of exponents.

Answer

(27)4×(311)5 \left(\frac{2}{7}\right)^4\times\left(\frac{3}{11}\right)^5