The sum of the numbers B and C (3/17) is the number of A, and the number of A is 15. What is the sum of the three numbers of A, B, and C?
乙、丙两数和的(3/17)是甲数，甲数是15，甲乙丙三数的和是多少．
<gadget id="calculator">3 / 17</gadget>
<output>3/17 = around 0.176471</output>

<gadget id="calculator">15 / (3/17)</gadget>
<output>85</output>

<gadget id="calculator">85 + 15</gadget>
<output>100</output>

<result>100</result>