Mother’s monthly income is 1,500 yuan, and father’s monthly income is 1/5 higher than mother’s. How much is father’s monthly income?
妈妈月收入1500元，爸爸月收入比妈妈高(1/5)，爸爸月收入多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1_500 * (6/5)</gadget>
<output>1_800</output>

<result>1_800</result>