3 1/8:((4 5/12-3 13/24)•4/7+(3 1/18- 2 7/12)•1 10/17)

Question

3 1/8:((4 5/12-3 13/24)•4/7+(3 1/18- 2 7/12)•1 10/17)

Answer 1

   3 1/8 : ((4 5/12 - 3 13/24)*4/7 + (3 1/18 - 2 7/12)*1 10/17) =
= 25/8 : ((106/24 - 85/24)*4/7 + (110/36 - 93/36)*27/17) =
= 25/8 : (7/8 * 4/7 + 17/36 * 27/17) =
= 25/8 : (1/2 + 3/4) = 25/8 : 5/4 = 25/8 * 4/5 = 5/2 = 2,5