The restaurant originally had (7/8) tons of flour, but (3/14) tons were used on the first day, and the original (3/14) tons were used on the second day. How many tons of flour were used in two days?
饭店原来有面粉(7/8)吨，第一天用去(3/14)吨，第二天又用去原来的(3/14)，两天共用去面粉多少吨？
<gadget id="calculator">3 / 14</gadget>
<output>3/14 = around 0.214286</output>

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(7/8) * (3/14)</gadget>
<output>3/16 = around 0.1875</output>

<gadget id="calculator">(3/14) + (3/16)</gadget>
<output>45/112 = around 0.401786</output>

<result>45/112 = around 0.401786</result>