There is a fraction (8/22), subtract a natural number from its numerator, add this natural number to the denominator, and finally become (1/5). what is this natural number
有一个分数是(8/22)，把它的分子减去一个自然数，分母加上这个自然数，后变成(1/5)．这个自然数是多少
<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<gadget id="calculator">30 / 6</gadget>
<output>5</output>

<gadget id="calculator">5 * 1</gadget>
<output>5</output>

<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<result>3</result>