4 tons of soybeans can extract 1.5 tons of oil. Which of the following formulas can be used to calculate how many tons of soybeans are needed to squeeze 1 ton of oil? How many
4吨黄豆能榨油1.5吨，下面哪个式子可用于计算榨1吨油需要多少吨黄豆？多少
<gadget id="calculator">4 / 1.5</gadget>
<output>2.666667</output>

<result>2.666667</result>