-(0.5)²+1/4-|-3²-9|-(-2/3)³*16/27
=-(1/2)²+1/4-|-18|-(-8/27)*16/27
=-14/+1/4+18+8/27*16/27
=18+128/729
=18又128/729化成假分数-(0.5)²+1/4-|-3²-9|-(-2/3)³*16/27=-(1/2)²+1/4-|-18|-(-8/27)*16/27=-14/+1/4+18+8/27*16/27=18+128/729=13122/729+128/729=13250/729