1.25÷2/3×0.8.102×7.3÷5.1 简便计算_数学解答

1.25÷2/3×0.8.102×7.3÷5.1 简便计算

人气：292 ℃　时间：2020-06-11 14:46:47

解答

1.25÷2/3×0.8
=1.25x0.8x3/2
=2x3/2
=3
102×7.3÷5.1
=102÷5.1x7.3
=20x7.3
=146X+3/4X=3/5解方程7/4X=3/5 x=12/35