Xiao Ming read 63 pages today, and the number of pages he read yesterday is today's (1/9). Question: How many pages did Xiao Ming read yesterday?
小明今天看书63页，昨天看书的页数是今天的(1/9)．问：小明昨天看书多页？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">63 * (1/9)</gadget>
<output>7</output>

<result>7</result>