4/(3/5)*(5/8)=
4/(3/5)*(5/8)=
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">4 / (3/5)</gadget>
<output>20/3 = around 6.666667</output>

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

<gadget id="calculator">(20/3) * (5/8)</gadget>
<output>25/6 = around 4.166667</output>

<result>25/6 = around 4.166667</result>