Вычислите: а) 1/5 + 3/5; б) 1/2 + 1/2; в) 7/10 + 4/10; г) 3/8 + 5/8; д) 5/16 + 3/16; е) 3/20 + 7/20; ж) 8/19 + 1/19; з) 7/91 + 13/91
ПОМОГИТЕ ПЖ, ДАЮ 40 БАЛЛОВ
ПОМОГИТЕ ПЖ, ДАЮ 40 БАЛЛОВ
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Answers & Comments
Пошаговое объяснение:
1/5 + 3/5 = 4/5
1/2 + 1/2 = 2/2 = 1
7/10 + 4/10 = 11/10=1,1
3/8 + 5/8 = 8/8 = 1
5/16 + 3/18 = 8/16 = 1/2
3/20 + 7/20 = 10/20 = 1/2
8/19 + 1/19 = 9/19
7/91 + 13/91 = 20/91