There are 357 students in the fifth and sixth grades of Hope Primary School, and the number of students in the fifth grade is 75% of that in the sixth grade. How many students are there in grade six?
希望小学五、六年级一共有学生357人，五年级学生数是六年级的75%．六年级有多少学生？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 + (3/4)</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">357 / (7/4)</gadget>
<output>204</output>

<result>204</result>