Let's solve this step by step:
Simplify the expression inside the brackets first:(8/7-1/14+1/42)= (96/98 - 7/98 + 2/98)= (91/98 + 2/98)= 93/98
Multiply by 12/46:(93/98)*(12/46)= (1116/4556)= 279/1139
Therefore, (8/7-1/14+1/42)*12/46 = 279/1139.
Let's solve this step by step:
Simplify the expression inside the brackets first:
(8/7-1/14+1/42)
= (96/98 - 7/98 + 2/98)
= (91/98 + 2/98)
= 93/98
Multiply by 12/46:
(93/98)*(12/46)
= (1116/4556)
= 279/1139
Therefore, (8/7-1/14+1/42)*12/46 = 279/1139.