解方程:5/2:x=5/4:60 6.3/0.2=x/5 0.6:x=15:1 12:14=x:6/1

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解方程:5/2:x=5/4:606.3/0.2=x/50.6:x=15:112:14=x:6/1解方程:5/2:x=5/4:606.3/0.2=x/50.6:x=15:112:14=x:6/1解方程:

解方程:5/2:x=5/4:60 6.3/0.2=x/5 0.6:x=15:1 12:14=x:6/1
解方程:5/2:x=5/4:60 6.3/0.2=x/5 0.6:x=15:1 12:14=x:6/1

解方程:5/2:x=5/4:60 6.3/0.2=x/5 0.6:x=15:1 12:14=x:6/1
(1)
5/2:x=5/4:60
(5/2)/x=(5/4)/60
(5/4)x=(5/2)60
x=120
(2)
6.3/0.2=x/5
x =(6.3/0.2)5
= 6.3
(3)
0.6:x=15:1
0.6/x = 15/1
x=0.6/15
=1/25
(4)
12:14=x:6/1
12/14=(x/6)/1
x = 36/7

5/2:x=5/4:60
X=120
6.3/0.2=x/5
X=157.5
0.6:x=15:1
X=0.04
12:14=x:6/1
X=72/14=36/7