There are 140 students in the fifth grade. There are more students in the fifth grade than in the sixth grade (5/9). How many students are there in the sixth grade? (solution by equation)
五年级有学生140人，五年级的学生比六年级多(5/9)，六年级有多少人？(用方程解)
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1 + (5/9)</gadget>
<output>14/9 = around 1.555556</output>

<gadget id="calculator">140 / (14/9)</gadget>
<output>90</output>

<result>90</result>