(3/8) of number A is 80% of number B, and number B is 90, how much more number A is than number B?
甲数的(3/8)是乙数的80%，乙数是90，甲数比乙数多多少？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(4/5) / (3/8)</gadget>
<output>32/15 = around 2.133333</output>

<gadget id="calculator">90 * (32/15)</gadget>
<output>192</output>

<gadget id="calculator">192 - 90</gadget>
<output>102</output>

<gadget id="calculator">102 / 90</gadget>
<output>17/15 = around 1.133333</output>

<result>17/15 = around 1.133333</result>