4-2a/2b+2-a
log30(36)=log18(36)/log18(30)
log18(36)=log18(18^2 /9)=2-a=2log18(6)
log18(6)=2-a/2
log18(30)=log18(5)+log18(6)=b+(2-a)/2
log18(36)/log18(30)=4-2a/2b+2-a
4-2a/2b+2-a
log30(36)=log18(36)/log18(30)
log18(36)=log18(18^2 /9)=2-a=2log18(6)
log18(6)=2-a/2
log18(30)=log18(5)+log18(6)=b+(2-a)/2
log18(36)/log18(30)=4-2a/2b+2-a