Xiao Ming gave (1/6) of his pictures to his younger sister. At this time, the number of his sister's pictures was exactly Xiao Ming's (3/5). It is known that his sister had 17 original pictures. How many pictures did Xiao Ming have? (column solution)
小明把自己画片的(1/6)给妹妹，这时妹妹的画片数正好是小明的(3/5)，已知妹妹原有画片17张，小明原有画片多少张？(列式解答)
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(5/6) * (3/5)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) - (1/6)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">17 / (1/3)</gadget>
<output>51</output>

<result>51</result>