2X=5/8

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2X=5/82X=5/82X=5/8x=5/8/2x=5/16X=5/8x2X=5/4x=5/8/2x=5/165/8:2X=5除以82X=0.625X=0.625除以2X=0.31255.8:2X=

2X=5/8
2X=5/8

2X=5/8
x=5/8/2
x=5/16

X=5/8 x 2
X=5/4

x=5/8/2
x=5/16

5/8:
2X=5 除以 8
2X=0.625
X=0.625 除以 2
X=0.3125
5.8:
2X=5.8 除以 2
2X=2.54