Teoon
4

# Proszę o obliczenie! Z góry dziękuję! :) Dam naj + pięć gwiazdek

(1) Odpowiedź
TrusSskaFFka13

Dodawanie a) 1 3/4 + 2 1/2 = 1 3/4 + 2 2/4 + 3 5/4 = 4 1/5 3 2/9 + 1 2/3 = 3 2/9 + 1 6/9 = 4 8/9 4 4/5 + 1 1/2 = 4 8/10 + 1 5/10 = 5 13/10 = 6 3/10 b) 4/5 + 3/4 + 2/5 = 16/20 + 15/20 + 8/20 = 39/20 = 1 19/20 5/7 + 1/2 + 6/7 = 10/14 + 7/14 + 12/14 = 29/14 = 2 1/14 2/8 + 1/3 + 5/8 = 6/24 + 8/24 + 15/24 = 29/24 = 1 5/24 c) 1 5/6 + 2 2/3 + 1 4/9 = 1 15/18 + 2 12/18 + 1 8/18 = 4 35/18 = 5 17/18 1 3/8 + 2 1/3 + 1 5/6 = 1 9/24 + 2 8/24 + 1 20/24 = 4 37/24 = 5 13/24 2 7/10 + 1 3/4 + 4/5 = 2 28/40 + 1 30/40 + 36/40 = 3 94 40 = 5 14 Odejmowanie a) 1 - 5/9 = 9/9 - 5/9 = 4/9 2 - 2/3 = 3/3 - 2/3 = 1/3 3 - 5/6 = 6/6 - 5/6 = 1/6 b) 4 - 2 2/5 = 2 - 2/5 = 1 5/5 - 2/5 = 1 3/5 2 - 1 5/8 = 1 - 5/8 = 8/8 - 5/8 = 3/8 5 - 3 1/7 = 2 - 1/7 = 1 7/7 - 1/7 = 1 6/7 c) 6 1/6 - 2 3/4 = 6 2/12 - 2 9/12 = 5 14/12 - 2 9/12 = 3 5/12 3 1/4 - 2 2/3 = 3 3/12 - 2 8/12 = 2 15/12 - 2 8/12 = 7/12 4 1/2 - 2 3/5 = 4 5/10 - 2 6/10 = 3 15/10 - 2 6/10 = 1 9/10 d) 3 2/9 - 1 5/6 = 3 4/18 - 1 15/18 = 2 22/18 - 1 15/18= 1 7/18 5 2/7 - 2 3/4 = 5 8/28 - 2 21/28 = 4 36/28 - 2 21/28 = 2 15/28 2 1/3 - 1 5/7 = 2 7/21 - 1 15/21 = 1 28/21 - 1 15/21 = 36/21 - 36/21 = 0 Nie jestem pewny w ostatnim d w odejmowaniu ale mam nadzieje że pomogłem :)

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