The current price of a product is 20 yuan, which is 5 yuan lower than the original price. How much is the reduction?
某商品现价20元，比原价降低了5元，降低了多少
<gadget id="calculator">20 + 5</gadget>
<output>25</output>

<gadget id="calculator">5 / 25</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>