Mom divided a piece of cloth 1 meter long into three pieces. The length of the first piece is (3/6) meters, the length of the second piece is (1/6) meters, how many meters is the length of the remaining piece?
妈妈把一块长1米的布分成三块．第一块长(3/6)米，第二块长(1/6)米，剩下的那块长多少米？
<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/2) - (1/6)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>