First, let's simplify the fractions:
11/12 - 9/10 = (1110 - 912) / (12*10)= (110 - 108) / 120= 2 / 120= 1 / 60
Now let's simplify the expression further:
(1/60) (3 - 4/3) = (1/60) (9/3 - 4/3)= (1/60) (5/3)= 5 / (60 3)= 5 / 180= 1 / 36
Therefore, 12•(11/12-9/10)•(3-1 1/3) = 1 / 36.
First, let's simplify the fractions:
11/12 - 9/10 = (1110 - 912) / (12*10)
= (110 - 108) / 120
= 2 / 120
= 1 / 60
Now let's simplify the expression further:
(1/60) (3 - 4/3) = (1/60) (9/3 - 4/3)
= (1/60) (5/3)
= 5 / (60 3)
= 5 / 180
= 1 / 36
Therefore, 12•(11/12-9/10)•(3-1 1/3) = 1 / 36.