Выполните вычитание:
1) 1/3-(+2/3)
2)-2/5-(-3/5)
3)-3/7-(+4/7)
4)5/8-(-7/8)
6)-1/9-(+2/9)
(/-Это дробная черта)
1) 1/3-(+2/3)
2)-2/5-(-3/5)
3)-3/7-(+4/7)
4)5/8-(-7/8)
6)-1/9-(+2/9)
(/-Это дробная черта)
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Answers & Comments
- 2/5 + 3/5 = 1/5
- 3/7 - 4/7 = -7/7 = - 1
5/8 + 7/8 = 12/8
-1/9 - 2/9 = - 3/9