The school has 120 soccer balls, which is 12 more than volleyball (4/5). How many volleyball balls are there?
学校有足球120个，比排球的(4/5)多12个，排球有多少个？
<gadget id="calculator">120 - 12</gadget>
<output>108</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">108 / (4/5)</gadget>
<output>135</output>

<result>135</result>