1 ton of soybeans can extract (7/20) tons of oil, and how many tons of oil can be extracted from 140 tons of soybeans.
1吨大豆可以榨油(7/20)吨，140吨大豆可以榨油多少吨．
<gadget id="calculator">7 / 20</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(7/20) * 140</gadget>
<output>49</output>

<result>49</result>