Odpowiedź :
Odpowiedź:
a) 1/3 + 1/2= 2/6 + 3/6= 5/6
b) 3/4 - 2/5= 15/20 - 8/20= 7/20
c) 5/8 + 1/7= 35/56 + 8/56= 43/56
d) 5/6- 3/7= 35/42 - 18/42 = 17/42
e) 2/7 + 1/5= 10/35 + 7/35= 17/35
f) 7/8- 2/3= 21/24 - 16/24= 5/24
g) 1/9 +1/7= 7/63 + 9/63= 16/63
h) 3/5- 1/3= 9/15- 5/15= 4/15
i) 7/9-3/4= 28/36 - 27/36= 1/36
Szczegółowe wyjaśnienie:
Odpowiedź:
1/3 + 1/2 = 2/6 + 3/6 = 5/6
3/4 - 2/5 = 15/20 - 8/20 = 7/20
5/8 + 1/7 = 35/56 + 8/56 = 43/56
5/6 - 3/7 = 35/42 - 18/42 = 17/42
2/7 + 1/5 = 10/35 + 7/35 = 17/35
7/8 - 2/3 = 21/24 - 16/24 = 5/24
1/9 + 1/7 = 7/63 + 9/63 = 16/63
3/5 - 1/3 = 9/15 - 5/15 = 4/15
7/9 - 3/4 = 28/36 - 27/36 = 1/36