After a decimal is enlarged by 4 times, the obtained number is 4.8 larger than the original number. What is the decimal?
一个小数扩大4倍后，得到的数比原来的数大了4.8，这个小数是多少．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">4.8 / 3</gadget>
<output>1.6</output>

<result>1.6</result>