The milk biscuit is less (7/2) tons than the juice biscuit, and the milk biscuit is (1/6) of the juice biscuit. How many tons are each of the two biscuits?
牛奶饼干比果汁饼干少(7/2)吨，牛奶饼干是果汁饼干的(1/6)，两种饼干各多少吨？
<gadget id="calculator">7 / 2</gadget>
<output>7/2 = around 3.5</output>

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

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(7/2) / (5/6)</gadget>
<output>21/5 = around 4.2</output>

<gadget id="calculator">(21/5) * (1/6)</gadget>
<output>7/10 = around 0.7</output>

<result>7/10 = around 0.7</result>