1) (1/12+1/6): (3/8-1/4) 2) (1-4/9): (1/3-1/4) 3) (1/3-5/16): (1/6-1/8) 4) (5/7-2/3): (4/9-5/12)

csnoleg    2   14.09.2019 08:50    0