[tex] (2^{28} + 6^{10} ):( 2^{10} * 3^{10} + 2^{28} )= ( 2^{28} + 6^{10} ):( 6^{10} + 2^{28} )=1[/tex]
2. [tex] 3^{40} :[ 3^{20} * 3^{18} +( 3^{19} )^{2} +( 4^{21} ) ^{38} ]
= 3^{40} :[ 3^{38} + 3^{38} + (2^{2} ) ^{21} ] ^{38} }
[/tex][tex] 3^{40}:[ 2*3^{38} + (2^{42} ) ^{38} ]=[/tex]