Решите примеры: 1/3-(+2/3) -2/5-(-3/5) -2/5-(-3/5) -3/7-(+4/7) 5/8-(-7/8) -1/9-(+2/9)

Question

Решите примеры:
1/3-(+2/3)
-2/5-(-3/5)
-2/5-(-3/5)
-3/7-(+4/7)
5/8-(-7/8)
-1/9-(+2/9)

Answer 1

1/3-(+2/3)=1/3-2/3=-1/3
-2/5-(-3/5)=-2/5+3/5=1/5
-3/7-(+4/7)=-3/7-4-7=-1
5/8-(-7/8)=5/8+7/8=1 и 1/2
-1/9-(+2/9)=-1/9-2/9=-1/3

Comments

Спасибо