Calculate the Square of 4/5: Fraction Power Problem

Question

Insert the corresponding expression:

(45)2= \left(\frac{4}{5}\right)^2=

Video Solution

Solution Steps

00:00 Simplify the following problem
00:03 According to the laws of exponents, a fraction raised to a power(N)
00:08 equals the numerator and denominator, raised to the same power (N)
00:12 We will apply this formula to our exercise
00:16 We'll calculate each power and substitute accordingly
00:31 This is the solution

Step-by-Step Solution

To solve the problem of finding the value of (45)2\left(\frac{4}{5}\right)^2, we will follow these steps:

  • Step 1: Identify the numerator and the denominator of the fraction. Here, the numerator is 4, and the denominator is 5.
  • Step 2: Apply the exponent to both the numerator and the denominator separately: (45)2=4252\left(\frac{4}{5}\right)^2 = \frac{4^2}{5^2}.
  • Step 3: Calculate 4252\frac{4^2}{5^2}. This gives:
    • The square of the numerator is 42=164^2 = 16.
    • The square of the denominator is 52=255^2 = 25.
    Thus, 4252=1625\frac{4^2}{5^2} = \frac{16}{25}.

Since we successfully calculated (45)2=1625\left(\frac{4}{5}\right)^2 = \frac{16}{25}, this matches the choice labeled 1625 \frac{16}{25} .

Therefore, the correct expression is 1625 \frac{16}{25} .

Answer

1625 \frac{16}{25}