"Six • One" Children's Day, the school bought some fruits and distributed them to each grade, among which the first grade, second grade, and third grade each got 2/15 of the total amount, and the remaining 30 kilograms were distributed to other grades. How many kilograms does the fruit bought by the school weigh?
"六•一"儿童节，学校买来若干水果分给各个年级，其中一年级、二年级、三年级各分得总量的(2/15)，剩下的30千克分给其他年级．学校买来的水果重多少千克？
<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(2/15) * 3</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 / (3/5)</gadget>
<output>50</output>

<result>50</result>