prosze o rozwiazanie tego ułamki dwa przykłady prosze :
np 1/2 - jedna druga *
więc :
1/2 - 1/3 - ( 1/4 - 1/5 ) =
7/6 + ( - 5/4 - 4/3 ) =
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1/2 - 1/3 - ( 1/4 - 1/5 ) = 0,116666667
7/6+(-5/4-4/3)=7/6+(-15/12-16/12)=14/12-31/12=-17/12
1) 1/6 - 1/20 = 14/120= 7/60
2) 7/6 + 1/12 = 15/12=5/4