（log2 3+log4 27）(log3 4+log27 16)

All transposition formulas are based on 10

Log3 18-1 / 4 log3 16 = what,

Log3 18-1 / 4 log3 16
=log3(18)-1/4*log3(16)
=log3(18)-log3(16)^1/4
=log3(18)-log3(2)
=log3(18/2)
=log3(9)
=2

How to multiply logarithms with different bases

Generally, it's hard to simplify. Of course, some can be calculated by changing the bottom formula
For example, log (2) 3 × log (3) 4 = log (2) 3 × log (2) 4 / log (2) 3 = log (2) 4 = 2

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