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化简下面各比,并求出比值.516:14;4.2:0.8.
题目详情
化简下面各比,并求出比值.
:
; 4.2:0.8.
:
; 4.2:0.8.
5 5 16 16
; 4.2:0.8.
1 1 4 4
5 |
16 |
1 |
4 |
5 |
16 |
1 |
4 |
5 |
16 |
1 |
4 |
1 |
4 |
▼优质解答
答案和解析
(1)
:
=(
×16):(
×16)
=5:4;
:
=5:4
=5÷4
=
;
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
.
5 5 516 16 16:
=(
×16):(
×16)
=5:4;
:
=5:4
=5÷4
=
;
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
.
1 1 14 4 4
=(
×16):(
×16)
=5:4;
:
=5:4
=5÷4
=
;
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
.
5 5 516 16 16×16):(
×16)
=5:4;
:
=5:4
=5÷4
=
;
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
.
1 1 14 4 4×16)
=5:4;
:
=5:4
=5÷4
=
;
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
.
5 5 516 16 16:
=5:4
=5÷4
=
;
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
.
1 1 14 4 4
=5:4
=5÷4
=
;
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
.
5 5 54 4 4;
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
.
21 21 214 4 4.
5 |
16 |
1 |
4 |
=(
5 |
16 |
1 |
4 |
=5:4;
5 |
16 |
1 |
4 |
=5:4
=5÷4
=
5 |
4 |
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
21 |
4 |
5 |
16 |
1 |
4 |
=(
5 |
16 |
1 |
4 |
=5:4;
5 |
16 |
1 |
4 |
=5:4
=5÷4
=
5 |
4 |
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
21 |
4 |
1 |
4 |
=(
5 |
16 |
1 |
4 |
=5:4;
5 |
16 |
1 |
4 |
=5:4
=5÷4
=
5 |
4 |
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
21 |
4 |
5 |
16 |
1 |
4 |
=5:4;
5 |
16 |
1 |
4 |
=5:4
=5÷4
=
5 |
4 |
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
21 |
4 |
1 |
4 |
=5:4;
5 |
16 |
1 |
4 |
=5:4
=5÷4
=
5 |
4 |
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
21 |
4 |
5 |
16 |
1 |
4 |
=5:4
=5÷4
=
5 |
4 |
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
21 |
4 |
1 |
4 |
=5:4
=5÷4
=
5 |
4 |
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
21 |
4 |
5 |
4 |
(2)4.2:0.8
=(4.2×5):(0.8×5)
=21:4;
4.2:0.8
=21:4
=21÷4
=
21 |
4 |
21 |
4 |
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