-32又25分之16÷(-8×4)+2.5²+(1/2+2/3-3/4-11/12)×24
=-32又25分之16÷(-32)+2.5²+(1/2×24+2/3×24-3/4×24-11/12×24）
=1又1/50+6.25+（12+16-18-22）
=7.27-12
=-4.73