已知a:b=1/2:1/3,b:c=1/5:1/4,则a:b:

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已知a:b=1/2:1/3,b:c=1/5:1/4,则a:b:
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已知a:b=1/2:1/3,b:c=1/5:1/4,则a:b:
已知a:b=1/2:1/3,b:c=1/5:1/4,则a:b:

已知a:b=1/2:1/3,b:c=1/5:1/4,则a:b:
a:b=1/2:1/3 a=3/2b b:c=1/5:1/4 c=5/4b a:b:c=3/2b:b:5/4b=6:4:5

a:b=1/2:1/3 则:b=2a/3 b:c=1/5:1/4 则:c=5b/4=5a/6 所以:a:b:c=a:2a/3:5a/6=6:4:5