The sports room of the school buys a batch of balls. The ratio of footballs to basketballs is 2:3, and the ratio of volleyballs to footballs is 4:5. There are 28 more basketballs than volleyballs. How many balls are there in total?
学校体育室购进一批球，其中足球和篮球的个数比是2：3，排球与足球的个数比是4：5，篮球比排球多28个，这批球一共有多少个．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(3/2) - (4/5)</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">28 / (7/10)</gadget>
<output>40</output>

<gadget id="calculator">40 * (3/2)</gadget>
<output>60</output>

<gadget id="calculator">40 * (4/5)</gadget>
<output>32</output>

<gadget id="calculator">40 + 60 + 32</gadget>
<output>132</output>

<result>132</result>