The sum of the minuend, the subtrahend and the difference is 128, the ratio of the subtrahend to the difference is 5:3, what is the subtrahend
被减数、减数与差的和是128，减数与差的比是5：3，减数是多少
<gadget id="calculator">128 / 2</gadget>
<output>64</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">64 * (5/8)</gadget>
<output>40</output>

<result>40</result>