There are 70 students in the art group of the school, and the number of boys is girls (3/4). How many girls are there?
学校美术组有70人，其中男生人数是女生的(3/4)．女生有多少人？
<gadget id="calculator">3 / 4</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">70 / (7/4)</gadget>
<output>40</output>

<result>40</result>