Question

2/3×1.2-1/4×1.2简便计算？

Answer 1

这是分数的乘法 混合运算 有共同相同的因数 1.2 可以利用分配率具体做法如下 : 如下 :2/3×1.2－1/4×1.2
=1.2×(2/3－1/4)
=1.2×(8/12－3/12)
=6/5×5/12
=1/2

Answer 2

解:原式=1.2(2/3－1/4)=1.2(812－3/12)=1.2x5/12=6/5ⅹ5/12=1/2。

Answer 3

2/3×1.2-1/4×1.2简便计算
=（2/3-1/4）×1.2
=5/12×1.2
=0.5

Answer 4

解:2/3x1.2－1/4x1.2= 1.2x(2/3－1/4)=1.2X(8/12－3/12) =1.2 X 5/12= 0.5

Answer 5

2/3 ×1.2- 1/4 ×1.2
解：原式=( 2/3 - 1/4 )x1.2
= ( 8/12 - 3/12 )× 6/5
= 5/12 × 6/5
= 1/2