The ratio of the number of teachers in the mathematics group to the teachers in the language group of Bijie No. 6 Primary School is 4:3. If 5 teachers are transferred from the mathematics group teachers to the teachers of the Chinese group, the ratio is 11:10. The teachers in the mathematics group of Bijie No. 6 Primary School how many people?
毕节六小的数学组教师与语文组教师的人数比是4：3，如果从数学组教师中抽调5人给语文组教师，这时人数比是11：10，毕节六小数学组教师原有多少人？
<gadget id="calculator">11 + 10</gadget>
<output>21</output>

<gadget id="calculator">10 / 21</gadget>
<output>10/21 = around 0.47619</output>

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

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">(10/21) - (3/7)</gadget>
<output>1/21 = around 0.047619</output>

<gadget id="calculator">5 / (1/21)</gadget>
<output>105</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">105 * (4/7)</gadget>
<output>60</output>

<result>60</result>