This year A’s age is B’s (5/6), B’s age is C’s (3/4), A’s age is 15 years younger than C’s, how old is A this year?
今年甲的年龄是乙的(5/6)，乙的年龄是丙的(3/4)，甲的年龄比丙小15岁，今年甲是多少岁？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(5/6) * (3/4)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">15 / (3/8)</gadget>
<output>40</output>

<gadget id="calculator">40 * (5/8)</gadget>
<output>25</output>

<result>25</result>