Verified answer

Пошаговое объяснение:

1/4 + 2 1/3 + 3 4/5 + 3/5 =

1/4 + 2 1/3 + 3 7/5 =

1/4 + 2 1/3 + 4 2/5 =

15/60 + 2 20/60 + 4 24/60 = 6 59/60

4 4/5 + 1 1/3 + 2/3 + 3/4 =

4 4/5 + 1 3/3 + 3/4 =

4 4/5 + 2 + 3/4 =

4 16/20 + 2 + 15/20 =

6 31/20 = 7 11/20

1 + 3/4 + 5 1/7 + 3 =

4 + 3/4 + 5 1/7 =

4 + 21/28 + 5 4/28 = 9 25/28