The number A is a multiple of 3 of the number B, then the number A is the number of these two numbers.
甲数是乙数的3倍数，那么甲数是这两个数的多少．
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

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

<result>3/4 = around 0.75</result>