When a number is divided by 7, the quotient is 15 with a remainder. What is the largest dividend.
一个数除以7，商是15，有余数．被除数最大是多少．
<gadget id="calculator">7 * 15</gadget>
<output>105</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">105 + 6</gadget>
<output>111</output>

<result>111</result>