A 2-meter-long wooden strip is sawn off (4/9) first, and then (4/9) meters, how many meters are sawed twice?
一根2米长的木条，先锯下(4/9)，再锯下(4/9)米，两次共锯下多少米？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">2 * (4/9)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">(8/9) + (4/9)</gadget>
<output>4/3 = around 1.333333</output>

<result>4/3 = around 1.333333</result>