The money in Xiaohong can buy 12 pencils or 4 erasers. He bought 3 pencils first, how many erasers can he buy with the remaining money?
小红身上的钱可以买12支铅笔或4块橡皮，他先买了3支铅笔，剩下的钱可以买几块橡皮？
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 3</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(3/4) / (1/4)</gadget>
<output>3</output>

<result>3</result>