原式=-3/2×(-2/9) +(-6)×5/12
=1/3-5/2
=-13/6
解
原式=-24×7/12-(-24)×5/6-(-24)×1-(5.6×3.2+4.4×3.2)
=-14+20+24-(5.6+4.4)×3.2
=30-32
=-2
原式=-3/2×(-2/9) +(-6)×5/12
=1/3-5/2
=-13/6
解
原式=-24×7/12-(-24)×5/6-(-24)×1-(5.6×3.2+4.4×3.2)
=-14+20+24-(5.6+4.4)×3.2
=30-32
=-2