问题
解答题
先化简比,再求比值:
0.8:
1.5:
|
答案
(1)
:15=(5 8
×5 8
):(15×8 5
)=1:24;8 5
:15=5 8
÷15=5 8
;1 24
(2)0.8:
=(0.8×20):(3 4
×20)=16:15;3 4
0.8:
=0.8÷3 4
=3 4
;16 15
(3)1.5:
=(1.5×3 5
):(10 3
×3 5
)=5:2;10 3
1.5:
=1.5÷3 5
=3 5
;5 2
故答案为:1:24,
;16:15,1 24
;5:2,16 15
.5 2