分数解方程,知道的帮我!要列式
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(1/2) / x = 3/4
解: x = (1/2) / (3/4)
x = (1/2) * (4/3)
x = 2/3
x + 1/2 = 7/8
解: x = 7/8 - 1/2
x= 7/8 - 4/8
x= 3/8
4x + 1/2 = 7/8
解: 4x = 3/8
x = (3/8) / 4
x = 3/32
解: x = (1/2) / (3/4)
x = (1/2) * (4/3)
x = 2/3
x + 1/2 = 7/8
解: x = 7/8 - 1/2
x= 7/8 - 4/8
x= 3/8
4x + 1/2 = 7/8
解: 4x = 3/8
x = (3/8) / 4
x = 3/32
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