Matematyka
Dusia22
1

Zad1 oblicz; a) -1-(- 4/7)= b) -2 1/5 +3. 3= c) 1 5/6 - 3 1/3= d) -4,5-2 1/4= e) -3 1/6 - (-5 5/6)= f) 7 1/3 + (-4 5/6)= g) -5 4/7 +7= h) -6 - (-4 5/9)= plisss na teraz daje najjj

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(1) Odpowiedź
Helplease

a) -1 - (-4/7) = -7/7 + 4/7 = -3/7 b) -2 1/5 + 3,3 = - 2 1/5 + 3 3/10 = -2 2/10 + 3 3/10 = 1 1/10  c) 1 5/6 - 3 1/3 = 1 5/6 - 3 2/6 = 1 5/6 - 2 8/6 = -1 3/6 = -1 1/2  d) -4,5  - 2 1/4 = -4 5/10 - 2 1/4 = -4 10/20 - 2 5/20 = -6 15/20 = -3 3/4 e) -3 1/6 - (-5 5/6) = - 3 1/6 + 5 5/6 = 4 4/6 = 4 2/3 f) 7 1/3 + (-4 5/6) = 7 2/6 - 4 5/6 = 6 8/6 - 4 5/6 = 2 3/6 = 2 1/2  g) -5 4/7 + 7 = -5 4/7+6 7/7 = 1 3/7 h) -6 -(-4 5/9) = -6 + 4 5/9 = -5 9/9 + 4 5/9 = - 1 4/9 

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