(8/15)*(5/16)+(5/27)/(10/9).
(8/15)*(5/16)+(5/27)/(10/9)．
<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">5 / 16</gadget>
<output>5/16 = around 0.3125</output>

<gadget id="calculator">(8/15) * (5/16)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">5 / 27</gadget>
<output>5/27 = around 0.185185</output>

<gadget id="calculator">10 / 9</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">(5/27) / (10/9)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) + (1/6)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>