1/2+1/3*2 1/2-1/3*3 дроби

Question

1/2+1/3*2


1/2-1/3*3


дроби

Answer 1

1) ( 1/3 ) * 2 ( 1/2) = ( 1/3 ) * ( 5/2 ) = 5/6 ; 2) ( 1/3 ) * 3 = 1 ; 3) ( 1/2 ) + ( 5/6 ) - 1 = ( 3/6 ) + ( 5/6 ) - 1 = ( 8/6 ) - 1 = 1 ( 2/6 ) - 1 = 2/6 = 1/3