Odpowiedź :
Odpowiedź:
A)
1/2 - 3/6 = 1/2 - 1/2 = 0
1/2 - 3/8 = 4/8 - 3/8 = 1/8
4/5 - 19/25 = 20/25 - 19/25 = 1/25
B)
2 2/3 - 1 5/5 = 2 2/3 - 2 = 2/3
2 2/6 - 2/3 = 2 1/3 - 2/3 = 1 4/3 - 2/3 = 1 2/3
2 1/4 - 1 6/8 = 2 2/8 - 1 6/8 = 1 10/8 - 1 6/8 = 4/8 = 1/2
C)
9 1/2 - 3 5/8 = 9 4/8 - 3 5/8 = 8 12/8 - 3 5/8 = 5 7/8
5 1/10 - 4 3/5 = 5 1/10 - 4 6/10 = 4 11/10 - 4 6/10 = 5/10 = 1/2
2 1/21 - 1 5/7 = 2 1/21 - 1 15/21 = 1 22/21 - 1 15/21 = 7/21 = 1/3
D)
2 7/9 - 1 1/6 = 2 14/18 - 1 3/18 = 1 11/18
3 4/15 - 1 11/30 = 3 8/30 - 1 11/30 = 2 38/30 - 1 11/30 = 1 27/30 = 1 9/10
2 7/30 - 1 17/20 = 2 14/60 - 1 51/60 = 1 74/60 - 1 51/60 = 23/60
Odpowiedź:
Szczegółowe wyjaśnienie:
1/2 -3/6=1/2 - 1/2=0
1/2 -3/8=4/8 -3/8=1/8
4/5 -19/25=20/25 -19/25=1/25
2 2/3 -1 5/5=2 2/3 -2=2/3
2 1/3 -2/3=1 4/3 -2/3=1 2/3
2 1/4 -1 3/4=1 5/4 -1 3/4=2/4=1/2
2 1/21 -1 5/7=2 1/21 -1 15/21=1 22/21 -1 15/21=7/21=1/3
2 7/9 -1 1/6=2 14/18 - 1 3/18=1 11/18
3 4/15 -1 11/30=3 8/30 - 1 11/30=2 38/30 - 1 11/30=1 27/30=1 9/10
2 7/30 -1 17/20=2 14/60 -1 51/60=1 74/60 - 1 51/60=23/60