((1/8)-(1/9)+(1/12))*72.
((1/8)-(1/9)+(1/12))*72．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(1/8) - (1/9)</gadget>
<output>1/72 = around 0.013889</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/72) + (1/12)</gadget>
<output>7/72 = around 0.097222</output>

<gadget id="calculator">(7/72) * 72</gadget>
<output>7</output>

<result>7</result>