The average weight of A and B is 63 kilograms. It is known that A's weight is B's (125/100), so how much is B's weight in kilograms?
甲、乙两人的平均体重为63千克，已知甲体重是乙体重的(125/100)，那么乙体重是多少千克．
<gadget id="calculator">125 / 100</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 + (5/4)</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">2 / (9/4)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">63 * (8/9)</gadget>
<output>56</output>

<result>56</result>