6又2分之一-3又8分之3-0.625怎么算 解方程；4x+10/7=10/7 0.27X3-6x=0.15 x-(9/2+7/3）=65/53

6又2分之一=6+1/2=12/2+1/2=13/2
3又8分之3=3+3/8=24/8+3/8=27/8
0.625=625/1000 （分子分母同时除以125）
=5/8
13/2-25/8-5/8=52/8-27/8-5/8=20/8=2又4/8 即=2又1/2
4x+10/7=10/7
4x=10/7-10/7
4x=0
x=0
0.27 X 3-6x=0.15
0.81-6x=0.15
6x=0.81-0.15
6x=0.66
x=0.11
x-(9/2+7/3)=65/53
x-(27/6+14/6)=65/53
x-41/6=65/53
x=65/53+41/6
x=390/318+2173/318
x=2563/318
x=8又19/318

6又2分之一-3又8分之3-0.625=6+1/2-(3+3/8)-5/8=6+1/2-3-3/8-5/8=6-3+1/2-(3/8+5/8)=3+1/2-1=2+1/2=2又1/24x+10/7=10/74x=10/7-10/74x=0x=00.27X3-6x=0.15 0.81-6x=0.156x=0.81-0.156x=0.66x=0.11x-(9/2+7/3）=65/53...