Take the 5 numbers 2, 3, 4, 5, and 10, and take out two numerators and denominators of a fraction each time, how many unequal true fractions can be formed in total.
将2，3，4，5，10这5个数，每次取出两个分别作为一个分数的分子和分母，一共可以组成多少个不相等的真分数．
<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">1 + 2 + 3 + 2</gadget>
<output>8</output>

<result>8</result>