x-3/8=7/12-1/6 怎么做

问题描述:

x-3/8=7/12-1/6 怎么做

X-3/8=7/12-1/16
X-18/48=28/48-3/48
X=28/48-3/48+18/48
X=(28-3+18)/48
X=43/48