How many times does it take to saw a 210 cm long wooden bar into 15 cm long pieces?
把一根210厘米长的木条锯成15厘米长的小段，一共要锯几次？
<gadget id="calculator">210 / 15</gadget>
<output>14</output>

<gadget id="calculator">14 - 1</gadget>
<output>13</output>

<result>13</result>