Odpowiedź:
a)
1 1/2 - 4/5 = 1 5/10 - 8/10 = 15/10 - 8/10 = 7/10
W chmurce powinno być 7/10
b)
7 1/2 - 5 4/9 = 7 9/18 - 5 8/18 = 2 i 1/18
W chmurce powinno być 2 i 1/8
c)
5 i 6/7 + 2 i 3/4 = 5 i 24/28 + 2 i 21/28 = 7 i 45/28 = 8 i 17/28
W chmurce powinno być 8 i 17/28
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Odpowiedź:
a)
1 1/2 - 4/5 = 1 5/10 - 8/10 = 15/10 - 8/10 = 7/10
W chmurce powinno być 7/10
b)
7 1/2 - 5 4/9 = 7 9/18 - 5 8/18 = 2 i 1/18
W chmurce powinno być 2 i 1/8
c)
5 i 6/7 + 2 i 3/4 = 5 i 24/28 + 2 i 21/28 = 7 i 45/28 = 8 i 17/28
W chmurce powinno być 8 i 17/28