The number of boys in the fifth grade is 1.2 times that of the girls. It is known that there are 40 fewer girls than boys. How many people are there in the fifth grade?
五年级男生人数是女生的1.2倍，已知女生比男生少40人，求五年级一共有多少人？
<gadget id="calculator">1.2 - 1</gadget>
<output>0.2</output>

<gadget id="calculator">40 / 0.2</gadget>
<output>200</output>

<gadget id="calculator">200 + 40 + 200</gadget>
<output>440</output>

<result>440</result>