There are 56 students in class one of grade five, and 49 students in class two.
五年级一班有学生56人，二班有学生49人，一班人数占全年级总人数的几分之几？
<gadget id="calculator">56 + 49</gadget>
<output>105</output>

<gadget id="calculator">56 / 105</gadget>
<output>8/15 = around 0.533333</output>

<result>8/15 = around 0.533333</result>