2 apples weigh the same as 3 peaches, 2 pears weigh the same as 5 peaches, 1 pear + 1 apple = how many peaches.
2个苹果和3个桃一样重，2个梨和5个桃一样重，1个梨+1个苹果=多少个桃．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(3/2) + (5/2)</gadget>
<output>4</output>

<result>4</result>