Paweł wymyślił inny sposob odejmowania ulamkow . Jego kartkowa : Pawel M. 2 2/7- 6/7 = 2 2/7 - 2/7 - 4/7 = 2 -4/7 = 1 3/7
8 2/9 - 3 7/9 = 5 2/9 - 7 / 9 = 5 2/9 -2/9 - 5/9 = 5 - 5/9 = 4 4/9
Przyjrzyj sie zapiskom Pawla i oblicz jego sposobem różnice : a ) 4 1/9 - 7/9
b ) 5 3/10 - 9/10
c ) 3 1/4 - 1 3/4
d ) 5 3/8 - 1 5/8
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4 1/9 - 7/9 = 4 - 6/9 + 3 3/9
5 3/10 - 9/10 = 5 - 6/10 = 4 4/10
3 1/4 - 1 3/4 = 2 1/4 - 3/4 = 2 - 2/4 = 1 2/4
5 3/8 - 1 5/8 = 4 3/8 - 5/8 = 4 - 2/8 = 3 6/8