What is the difference between (7/8) minus the product of (4/15) and (45/64)?
(7/8)减去(4/15)与(45/64)的积，差是多少？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">4 / 15</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">45 / 64</gadget>
<output>45/64 = around 0.703125</output>

<gadget id="calculator">(4/15) * (45/64)</gadget>
<output>3/16 = around 0.1875</output>

<gadget id="calculator">(7/8) - (3/16)</gadget>
<output>11/16 = around 0.6875</output>

<result>11/16 = around 0.6875</result>