问题
解答题
化简下列比,并求比值.
|
答案
(1)
5 |
4 |
2 |
3 |
=(
5 |
4 |
2 |
3 |
=15:8,
5 |
4 |
2 |
3 |
=
5 |
4 |
2 |
3 |
=
15 |
8 |
(2)18:1.2,
=(18×10):(1.2×10),
=180:12,
=(180÷12):(12÷12),
=15:1;
18:1.2,
=18÷1.2,
=15.
化简下列比,并求比值.
|
(1)
5 |
4 |
2 |
3 |
=(
5 |
4 |
2 |
3 |
=15:8,
5 |
4 |
2 |
3 |
=
5 |
4 |
2 |
3 |
=
15 |
8 |
(2)18:1.2,
=(18×10):(1.2×10),
=180:12,
=(180÷12):(12÷12),
=15:1;
18:1.2,
=18÷1.2,
=15.