题目内容
已知:a:b=
:
,b:c=6:5,求a:b:c.
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分析:先将a与b的比进行进一步计算,即a:b=
:
=2:3=4:6,又因为b:c=6:5,所以a:b:c=4:6:5.据此解答即可.
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解答:解:因为a:b=
:
=2:3=4:6,
又因为b:c=6:5,
所以a:b:c=4:6:5.
答:a:b:c是4:6:5.
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又因为b:c=6:5,
所以a:b:c=4:6:5.
答:a:b:c是4:6:5.
点评:解决本题的关键是将b的份数化为同一个数,再进一步求三个数的连比.
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