化简下列各比,并求比值.
8:0.04 2:
|
(1)
=(
=12:10, =(12÷2):(10÷2), =6:5;
=6:5, =6÷5, =1.2; (2)8:0.04, =(8×25):(0.04×25), =200:1; 8:0.04, =200:1, =200÷1, =200; (3)2:
=(2×7):(
=14:4, =(14÷2):(4÷2), =7:1; 2:
=7:1, =7÷1; =7. |
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a.25:125