ADD. \[ \left(4.9 \times 10^{5}\right)+\left(1.53 \times 10^{5}\right) \] (Enter your answer in scientific notation with NO SPACES!)

To add these numbers in scientific notation, you need to ensure they have the same exponent. Here, both numbers are already in the form \(10^{5}\). Now, combine the coefficients: \[ 4.9 + 1.53 = 6.43 \] Thus, the sum is: \[ 6.43 \times 10^{5} \] So, your final answer in scientific notation is: \[ 6.43 \times 10^{5} \]