Вопрос:

29. К числу в рамке прибавь каждое число в столбце.

Фотография

Ответ ассистента

Для решения примеров нужно привести дроби к общему знаменателю и сложить их. ### Столбик А (прибавляем 1/2): - 1/2 + 1/9 = 9/18 + 2/18 = 11/18 - 1/2 + 1/7 = 7/14 + 2/14 = 9/14 - 1/2 + 1/4 = 2/4 + 1/4 = 3/4 - 1/2 + 2/5 = 5/10 + 4/10 = 9/10 - 1/2 + 1 1/2 = 1/2 + 3/2 = 4/2 = 2 - 1/2 + 1/10 = 5/10 + 1/10 = 6/10 = 3/5 - 1/2 + 3/7 = 7/14 + 6/14 = 13/14 ### Столбик Б (прибавляем 1/3): - 1/3 + 3/8 = 8/24 + 9/24 = 17/24 - 1/3 + 4/9 = 3/9 + 4/9 = 7/9 - 1/3 + 2/3 = 3/3 = 1 - 1/3 + 5/6 = 2/6 + 5/6 = 7/6 = 1 1/6 - 1/3 + 7/18 = 6/18 + 7/18 = 13/18 - 1/3 + 1 1/2 = 2/6 + 9/6 = 11/6 = 1 5/6 - 1/3 + 3/4 = 4/12 + 9/12 = 13/12 = 1 1/12 - 1/3 + 2/9 = 3/9 + 2/9 = 5/9 - 1/3 + 2 1/6 = 2/6 + 13/6 = 15/6 = 2 3/6 = 2 1/2 - 1/3 + 4/15 = 5/15 + 4/15 = 9/15 = 3/5 - 1/3 + 1/7 = 7/21 + 3/21 = 10/21 - 1/3 + 1/6 = 2/6 + 1/6 = 3/6 = 1/2 - 1/3 + 5/12 = 4/12 + 5/12 = 9/12 = 3/4 - 1/3 + 1/15 = 5/15 + 1/15 = 6/15 = 2/5 - 1/3 + 1/2 = 2/6 + 3/6 = 5/6 ### Столбик В (прибавляем 2/5): - 2/5 + 3/10 = 4/10 + 3/10 = 7/10 - 2/5 + 4/7 = 14/35 + 20/35 = 34/35 - 2/5 + 1 1/20 = 8/20 + 21/20 = 29/20 = 1 9/20 - 2/5 + 1/2 = 4/10 + 5/10 = 9/10 - 2/5 + 3/5 = 5/5 = 1 - 2/5 + 7/15 = 6/15 + 7/15 = 13/15 - 2/5 + 9/10 = 4/10 + 9/10 = 13/10 = 1 3/10 - 2/5 + 3/8 = 16/40 + 15/40 = 31/40 - 2/5 + 1 1/5 = 2/5 + 6/5 = 8/5 = 1 3/5 - 2/5 + 2/9 = 18/45 + 10/45 = 28/45 - 2/5 + 17/20 = 8/20 + 17/20 = 25/20 = 1 5/20 = 1 1/4 - 2/5 + 7/10 = 4/10 + 7/10 = 11/10 = 1 1/10 - 2/5 + 2 4/5 = 2/5 + 14/5 = 16/5 = 3 1/5 - 2/5 + 2/3 = 6/15 + 10/15 = 16/15 = 1 1/15 - 2/5 + 6/25 = 10/25 + 6/25 = 16/25

Другие решения

Что ещё задавали пользователи