若a:b=2:3及b:c=2:5,求a:b:c ?

LeungTsz ching selina

2016-07-20 1:38 pm

更新1:

若a:b=2:3及b:c=2:5,求a:b:c ?求解答

回答 (2)

pui

2016-07-20 3:20 pm

a:b=2:3=4:6
b:c=2:5=6:15
a:b:c=4:6:15

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[匿名]

2016-07-20 2:02 pm

4:6:15

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