Выполни вычитание и проверьте ответ сложением 1/3-1/4, 5/6-1/15, 11/12-3/8, 5/9-1/6

1
1/3 -1/4=4/12 -3/12=1/12 1/12 + 1/4 = 4/12=1/3
5/6 - 1/15 =25/30 -2/30 =23/30 23/30 + 1/15 =25/30 =5/6
11/12 - 3/8 = 22/24 - 9/24 =13/24 13/24+ 3/8 = 13/24 + 9/24 =22/24=11/12
5/9 - 1/6 =10/18 - 3/18 =7/18 7/18 + 1/6 = 7/18 = 3/18 =10/18 =5/9

Ответы и объяснения

2014-02-25T18:06:01+00:00
1/3-1/4 = 4/12 - 3/12 = 1/12      1/12 + 3/12 = 4/12
5/6-1/15 = 25/30 - 2/30 = 23/30        23/30 + 2/30 = 25/30
11/12-3/8  =  22/24 - 9/24 =  13/24       13/24 + 9/24 = 22/24 = 11/12
5/9-1/6
= 30/54 - 9/54 = 21/54        21/54 + 9/54 = 30/54 = 5/9