简算 1.3*i/4-0.5*25%-0.2/4

问题描述:

简算 1.3*i/4-0.5*25%-0.2/4

1.3×1/4-0.5×25%-0.2/4
=1.3×1/4-0.5×1/4-0.2×1/4
=1/4×(1.3-0.5-0.2)
=1/4×3/5
=3/20