How many real fractions have numerators not greater than 4 and denominators less than 15?
分子不大于4，分母小于15的真分数共有多少个．
<gadget id="calculator">4 / 1</gadget>
<output>4</output>

<gadget id="calculator">2 / 1</gadget>
<output>2</output>

<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">3 / 1</gadget>
<output>3</output>

<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">1 + 2 + 3 + 40</gadget>
<output>46</output>

<result>46</result>