(1 2/9 + 1 /16 )* (2-1 52/42)=решите мне плиз

Question

(1 2/9 + 1 /16 )* (2-1 52/42)=
решите мне плиз

Answer 1

( 1 2/9 + 1/16) * (2 - 1 52/42) = (11/9 + 1/16) * (2/1 - 94/42 ) = (176/144 + 9/144) * (84/42 - 94/42) = 185/144 * (-10/42) = - 925/3024