An apple and a pear weigh 4.9 kilograms in total. It is known that (5/8) of the apple is equal to (3/5) of the pear, so how many kilograms does the pear weigh?
苹果和梨共重4.9千克，已知苹果的(5/8)等于梨的(3/5)，那么梨重多少千克．
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">4.9 * (5/8)</gadget>
<output>3.0625</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(5/8) + (3/5)</gadget>
<output>49/40 = around 1.225</output>

<gadget id="calculator">3.0625 / (49/40)</gadget>
<output>2.5</output>

<result>2.5</result>