问题
解答题
化简比 12:16
0.5:0.25. |
答案
(1)12:16,
=(12÷4):(16÷4),
=3:4;
(2)
:3 5
,5 7
=(
×35):(3 5
×35),5 7
=21:25;
(3)0.5:0.25,
=(0.5÷0.25):(0.25÷0.25),
=2:1.
化简比 12:16
0.5:0.25. |
(1)12:16,
=(12÷4):(16÷4),
=3:4;
(2)
:3 5
,5 7
=(
×35):(3 5
×35),5 7
=21:25;
(3)0.5:0.25,
=(0.5÷0.25):(0.25÷0.25),
=2:1.