0.05×0.0005×5000000-⅓

To solve the expression \(0.05 \times 0.0005 \times 5000000 - \frac{1}{3}\), let's break it down step by step.

1. Calculate \(0.05 \times 0.0005\): \[ 0.05 \times 0.0005 = 0.000025 \]

2. Now multiply that result by \(5000000\): \[ 0.000025 \times 5000000 = 125 \]

3. Now subtract \(\frac{1}{3}\) from \(125\)**: \[ 125 - \frac{1}{3} \]

   Converting \(125\) into a fraction: \[ 125 = \frac{375}{3} \]

   Now perform the subtraction: \[ \frac{375}{3} - \frac{1}{3} = \frac{375 - 1}{3} = \frac{374}{3} \]

Thus, the final result is: \[ \frac{374}{3} \approx 124.67 \] (as a decimal).

Therefore, the answer is \(\frac{374}{3}\) or approximately \(124.67\).