Severe soil erosion causes approximately 1.5 billion tons of sediment to flow into the Yellow River every year. (1/3) of the sediment is deposited in the channel, and the rest is brought into the sea. How many billion tons of sediment are brought into the sea every year?
严重的水土流失致使每年大约有15亿吨的泥沙流入黄河．其中的(1/3)的泥沙沉积在河道中，其余的被带到入海口．每年有多少亿吨泥沙被带到入海口？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">15 * (2/3)</gadget>
<output>10</output>

<result>10</result>