Dad bought 15 apples, Xiaoqiao ate some of them (4/15), Xiaopang ate some of them (7/15), who ate more? How much?
爸爸买了15个苹果，小巧吃了其中的(4/15)，小胖吃了其中的(7/15)，两个谁吃的比较多？多多少？
<gadget id="calculator">7 / 15</gadget>
<output>7/15 = around 0.466667</output>

<gadget id="calculator">15 * (7/15)</gadget>
<output>7</output>

<gadget id="calculator">4 / 15</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">15 * (4/15)</gadget>
<output>4</output>

<gadget id="calculator">7 - 4</gadget>
<output>3</output>

<result>3</result>