1-(1/10)-(1/100)-(1/1000)-(1/10000)=
1-(1/10)-(1/100)-(1/1000)-(1/10000)=
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">1 / 1_000</gadget>
<output>1/1_000 = around 0.001</output>

<gadget id="calculator">1 / 10_000</gadget>
<output>1/10_000 = around 0.0001</output>

<gadget id="calculator">1 - (1/10) - (1/100) - (1/1_000) - (1/10_000)</gadget>
<output>8_889/10_000 = around 0.8889</output>

<result>8_889/10_000 = around 0.8889</result>