The fruit store shipped 450 kg of apples, pears and bananas, of which the weight of the pears accounted for (1/5) of the three fruits, and the ratio of the weight of the apples to the sum of the weights of the other two fruits It is 1:2. How many kilograms are the apples and pears delivered in total?
水果店运来苹果、梨和香蕉共450千克，其中运来的梨的重量占三种水果的(1/5)，运来的苹果的重量和运来的其它两种水果重量之和的比是1：2．运来苹果和梨一共多少千克？
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">450 / 3</gadget>
<output>150</output>

<gadget id="calculator">150 * 1</gadget>
<output>150</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">450 * (1/5)</gadget>
<output>90</output>

<gadget id="calculator">150 + 90</gadget>
<output>240</output>

<result>240</result>