120 trees were planted in the fifth grade of the experimental primary school, the number of trees planted in the fourth grade was less than that of the fifth grade (1/4), the number of trees planted in the sixth grade was more than that of the fourth grade (1/9), how many trees were planted in the sixth grade?
实验小学五年级植树120棵，四年级植树的棵数比五年级少(1/4)，六年级比四年级多(1/9)，六年级植树多少棵？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 + (1/9)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">120 * (3/4) * (10/9)</gadget>
<output>100</output>

<result>100</result>