Define a new operation "※", stipulate a※b=a*ba/b, a, b are both natural numbers, then (8※4)※5=how much.
定义一种新运算"※"，规定a※b=a*b-a/b，a，b均为自然数，则(8※4)※5=多少．
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">32 - 2</gadget>
<output>30</output>

<gadget id="calculator">30 * 5</gadget>
<output>150</output>

<gadget id="calculator">30 / 5</gadget>
<output>6</output>

<gadget id="calculator">150 - 6</gadget>
<output>144</output>

<result>144</result>