Use (3/10)m ribbons to make one silk flower, how many m ribbons are needed to make 3 such silk flowers.
做一朵绸花用(3/10)m绸带，做3朵这样的绸花，要用多少m绸带．
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) * 3</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>