简便计算题及答案2/[2.5*2.4]/4.8+0.8/5_数学解答

简便计算题及答案2/[2.5*2.4]/4.8+0.8/5

人气：319 ℃　时间：2020-06-21 03:30:55

解答

2÷[2.5*2.4]÷4.8+0.8÷5
=2÷[2.5*0.4*6]÷4.8+0.8÷5
=2÷[1*6]÷24/5+8/50
=1/3x5/24+4/25
=5/72++4/25
=(125+288)/1800
=413/1800