0.25*(13/31)+(18/31)*25%=
0.25*(13/31)+(18/31)*25%=
<gadget id="calculator">13 / 31</gadget>
<output>13/31 = around 0.419355</output>

<gadget id="calculator">0.25 * (13/31)</gadget>
<output>0.104839</output>

<gadget id="calculator">18 / 31</gadget>
<output>18/31 = around 0.580645</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(18/31) * (1/4)</gadget>
<output>9/62 = around 0.145161</output>

<gadget id="calculator">0.104839 + (9/62)</gadget>
<output>0.25</output>

<result>0.25</result>