It is known that the ratio of the minuend to the subtrahend is 5:3, and the subtrahend is 15, what is the difference
已知被减数与减数的比是5：3，减数是15，差是多少
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">15 * (5/3)</gadget>
<output>25</output>

<gadget id="calculator">25 - 15</gadget>
<output>10</output>

<result>10</result>