The ratio of simplification is 1.35:9, two fifths: one quarter, 0.6.3:0.9, 2:one quarter

1.35:9 =135：900=3：20
Two fifths: one quarter = 8:5
75 to 3 = 75:300 = 1:4
6.3：0.9=63：9=7：1
2: Quarter = 8:1

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