Задание No 1:
1) ( 7 - 2 3/11 ) + 4 10/11 = ( 6 11/11 - 2 3/11 ) + 4 10/11 = 5 8/11 + 4 10/11 =
= 9 18/11 = 10 7/11.
Ответ: 10 7/11.
2) ( 5 6/7 - 3 2/7 ) - ( 9 3/7 - 8 4/7 ) = 2 4/7 - ( 8 10/7 - 8 4/7 ) =
= 2 4/7 - 6/7 = 1 11/7 - 6/7 = 1 5/7.
Ответ: 1 5/7.
3) ( 9 8/17 - 5 8/17 ) - ( 1 12/13 + 1 8/13 ) = 4 - 2 20/13 = 3 13/13 - 3 7/13 =
= 6/13.
Ответ: 6/13.
4) ( 19 3/19 - 7 16/19 ) - ( 4 5/8 + 3 3/8 ) = ( 18 22/19 - 7 16/19 ) -
- 7 8/8 = 11 6/19 - 8 = 3 6/19.
Ответ: 3 6/19.
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p.s. Рада, если помогла)))
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Answers & Comments
Задание No 1:
1) ( 7 - 2 3/11 ) + 4 10/11 = ( 6 11/11 - 2 3/11 ) + 4 10/11 = 5 8/11 + 4 10/11 =
= 9 18/11 = 10 7/11.
Ответ: 10 7/11.
2) ( 5 6/7 - 3 2/7 ) - ( 9 3/7 - 8 4/7 ) = 2 4/7 - ( 8 10/7 - 8 4/7 ) =
= 2 4/7 - 6/7 = 1 11/7 - 6/7 = 1 5/7.
Ответ: 1 5/7.
3) ( 9 8/17 - 5 8/17 ) - ( 1 12/13 + 1 8/13 ) = 4 - 2 20/13 = 3 13/13 - 3 7/13 =
= 6/13.
Ответ: 6/13.
4) ( 19 3/19 - 7 16/19 ) - ( 4 5/8 + 3 3/8 ) = ( 18 22/19 - 7 16/19 ) -
- 7 8/8 = 11 6/19 - 8 = 3 6/19.
Ответ: 3 6/19.
________________________________________________________
p.s. Рада, если помогла)))