Which is greater `2/7` or `5/8` ?

Which is greater -3:4 or 5:6?

Which is greaster : 2/7 of 3/4 or 3/5 of 5/8 (ii) 1/2 of 6/7 or 2/3 of 3/7

which one is greater 8^2 or 2^8 ?

Which is greater ? 12^8 or 6^4

Which is greater? 2/7\ of3/4 or   3/5of5/8\

Which is greater? 1/2\ of6/7\ or2/3\ of3/7\

Which is greater, 5^(3) or 3^(5) ?

Which is greater to 2 ^(12) or 3 ^(8)

Which is greater? (i) 0.5 or 0.05 (ii) 0.7 or 0.5 (iii) 7 or 0.7 (iv) 1.37 or 1.49 (v) 2.03 or 2.30 (vi) 0.8 or 0.88.

Which is greater: (3)/(5) of (1)/(4) or (2)/(7) of (5)/(8) ?