问题描述:X-5/8=5/12最佳答案: 解:X-5/8=5/12X=5/12+5/8X=(5*2)/(12*2)+(5*3)/(8*3)X=10/24+15/24X=25/24验证:25/24-5/8=5/12 ?? 点击显示答案