x+20%x=24x-(2/3)x=(4/5)x+(4/5)x+15=60(6/7)x*(3/7)=45.
x+20%x=24x-(2/3)x=(4/5)x+(4/5)x+15=60(6/7)x*(3/7)=45．
<gadget id="calculator">7 / 3</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">45 * (7/3)</gadget>
<output>105</output>

<gadget id="calculator">7 / 6</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">105 * (7/6)</gadget>
<output>245/2 = around 122.5</output>

<result>245/2 = around 122.5</result>