There are 24 students in the sixth grade, and 21 students have reached the physical education standard. What percentage is the standard?
六年级有24人，体育达标的有21人，达标率是百分之几？
<gadget id="calculator">21 / 24</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(7/8) * 1</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>