The production ratio of apples and pears in an orchard this year is 4:5, how much less is the production of apples than the production of pears? By what percent is the yield of pears greater than that of apples?
一个果园今年的苹果和梨的产量比是4：5，苹果产量比梨产量少百分之几？梨产量比苹果产量多百分之几？
<gadget id="calculator">5 - 4</gadget>
<output>1</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>