Odpowiedź :
Odpowiedź:
a) 2/3+6/7= 14/21+ 18/21= 32/21= 1 i 11/21
7/8+5/6= 21/24+ 20/24= 41/24= 1 i 17/24
b) 5 i 1/4 + 5/6= 5 i 3/12+ 10/12= 5 i 13/12= 6 i 1/12
1 i 7/9 +2 i 3/10= 1 i 70/90 + 2 i 27/90 = 3 i 97/90= 4 i 7/90
2 i 7/8 + 3 i 1/6= 2 i 21/24+ 3 i 4/24= 5 i 25/24= 6 i 1/24
Szczegółowe wyjaśnienie:
Odpowiedź:
2/3 + 6/7 = 14/21 + 18/21 = 32/21 = 1 i 11/21
7/8 + 5/6 = 21/24 + 20/24 = 41/24 = 1 i 17/24
5 i 1/4 + 5/6 = 5 i 3/12 + 10/12 = 5 i 13/12 = 6 i 1/12
1 i 7/9 + 2 i 3/10 = 1 i 70/90 + 2 i 27/90 = 3 i 97/90 = 4 i 7/90
2 i 7/8 + 3 i 1/6 = 2 i 21/24 + 3 i 4/24 = 5 i 25/24 = 6 i 1/24