x+5/12=7/8
x=7/8-5/12
x=21/24-10/24
x=11/24
4/9+x=23/27
x=23/27-4/9
x=23/27-12/27
x=11/27
x-8/11=3
x=3+8/11
x=33/11+8/11
x=41/11