15*199*2/3

To calculate \( 15 \times 199 \times \frac{2}{3} \):

1. First, multiply \( 15 \) by \( 199 \): \[ 15 \times 199 = 2985 \]

2. Now, multiply that result by \( 2 \): \[ 2985 \times 2 = 5970 \]

3. Finally, divide by \( 3 \): \[ \frac{5970}{3} = 1990 \]

So, \( 15 \times 199 \times \frac{2}{3} = 1990 \).