Prosze o rozwiązanie:
7 2/3 - 1 3/4 + 5 3/5=
6 3/7 + 2 4/5 - (2 1/3 + 3 4/7)=
5 2/8 - 4 3/9 + 3 7/12=
4 11/13 - 5 3/5 + 4 3/4=
/ <------kreska ułamkowa
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= 7 40/60-1 45/60+5 36/60= 11 31/60
= 6 3/7+ 2 4/5-( 2 7/21+3 12/21)= 6 3/7+ 2 4/5- 5 19/21= 6 45/105+ 2 84/105- 5 95/105= 3 34/105
=5 18/72-4 24/72+ 3 42/72= 4 36/72= 4 1/2