438. Выполните вычитание
1)1/3-(+2/3)=
2)-2/5-(-3/5)=
3)-2/5-(3/5)=
4)-3/7-(+4/7)=
5)5/8-(-7/8)=
6)-1/9-(+2/9)=
1)1/3-(+2/3)=
2)-2/5-(-3/5)=
3)-2/5-(3/5)=
4)-3/7-(+4/7)=
5)5/8-(-7/8)=
6)-1/9-(+2/9)=
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Answers & Comments
Ответ:
1)-1/3
2)1/5
3)1/5
4)7/7=1
5)13/8
6)3/9