A food factory produced less (7/2) tons of milk biscuits than Guohan biscuits in September, and produced more (1/5) tons of Guohan biscuits than milk biscuits. How many tons of milk biscuits were produced?
一食品厂九月份生产的牛奶饼干比果汗饼干少(7/2)吨，果汗饼干生产的吨数比牛奶饼干多(1/5)，生产了多少吨牛奶饼干？
<gadget id="calculator">7 / 2</gadget>
<output>7/2 = around 3.5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(7/2) / (1/5)</gadget>
<output>35/2 = around 17.5</output>

<result>35/2 = around 17.5</result>