你好!分两步提取公因式即可,首先-0.6是公因子提取出来后进行运算,其次2.5又是公因子再提取出来后进行运算得 2.5-0.6×1.5-0.6=2.5-0.6×(1.5+1)=2.5×(1-0.6)=1
转变为分数计算
10/25-10/6*10/15-10/6
=10/25-100/90-10/6
=10/25-10/9-10/6
=10/(25-9-6)
=10/10
=1
2.5-0.6x1.5-0.6
=2.5-0.6x(1.5+1)
=2.5-0.6x2.5
=2.5x(1-0.6)
=2.5x0.4
=1
2.5-0.6×1.5-0.6
=2.5-(0.6×1.5-0.6×1)
=2.5-0.6×(1.5+1)
=2.5-0.6×2.5
=2.5×(1-0.6)
=2.5×0.4
=1