My mother’s monthly salary last year was 910 yuan. This year it has increased (2/7) compared to last year. How much has it increased?
妈妈去年的月工资是910元，今年比去年涨了(2/7)，涨了多少元？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">910 * (2/7)</gadget>
<output>260</output>

<result>260</result>