简便计算:1.2⼀0.125*0.5⼀4.8

2024-12-05 10:43:22
推荐回答(3个)
回答(1):

1.2/0.125*0.5/4.8
= 12/1.25 * 5/48
= 12*100/125 * 5/48
= 12*100/25 * 1/48
= 12*4 * 1/48
= 1

回答(2):

1.2/0.125*0.5/4.8
=1.2×8×0.5÷4.8
=1.2÷4.8×8×0.5
=1/4×2
=1/2

回答(3):

解: 1.2/0.125*0.5/4.8
=1.2*5/(0.125*8*6)
=6/(1*6)
=1
说明:写括号的原因是让看明白下边是个整体,自己做时因为同在分数线下边,不用括号的