Mom bought apples and pears. The ratio of apples to pears is 4:5. After eating 2 apples, the number of apples accounted for 2/3 of pears. Mom bought apples and pears in total. how many?
妈妈买来苹果和梨两种水果，苹果与梨的个数比是4：5，当吃了2个苹果后，苹果个数占梨的(2/3)，妈妈买了苹果和梨一共有多少个？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(4/5) - (2/3)</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">2 / (2/15)</gadget>
<output>15</output>

<gadget id="calculator">15 * (4/5)</gadget>
<output>12</output>

<gadget id="calculator">12 + 15</gadget>
<output>27</output>

<result>27</result>