Shutai Primary School had a total of 900 students last year, an increase of (4/9) this year compared to last year. How many students are there this year?
树台小学去年共有学生900人，今年比去年增加(4/9)，今年有多少人？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">1 + (4/9)</gadget>
<output>13/9 = around 1.444444</output>

<gadget id="calculator">900 * (13/9)</gadget>
<output>1_300</output>

<result>1_300</result>