Question

1 одна 4 четвертих плюс 1 одна 3 третіх

Answer 1

1/4 + 1/6 = 3/12 + 2/12 = 5/12
1/5 + 1/9 = 9/45 + 5/45 = 14/45
1/4 + 2/5= 5/20 + 8/20 = 13/20
3/5 + 3/7= 21/35 + 15/35 = 36/35 = 1 1/35