Odpowiedź:
a) 1/2 - 3/6 = 3/6 - 3/6 = 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 4/5 = 8/6 - 9/5 = 40/15 - 27/15 =
= 13/15
1 2/6 - 2/3 = 8/6 - 4/6 = 2/6 = 1/3
2 1/4 - 1 6/8 = 9/4 - 14/8 = 18/8 - 14/8 = 4/8 =
= 1/2
c) 9 1/2 - 3 5/8 = 19/2 - 29/8 = 76/8 - 29/8 =
= 47/8 = 5 7/8
5 1/10 - 4 3/5 = 51/10 - 23/5 = 51/10 - 46/10 =
= 5/10 = 1/2
2 1/21 - 1 5/7 = 43/21 - 12/7 = 43/22 = 7/22 =
= 1/3
d) 2 7/9 - 11/6 = 25/9 - 11/6 = 100/36 - 66/36 =
= 34/36 = 17/18
3 4/15 - 1 11/30 = 49/15 - 41/30 = 98/30 -
= 41/30 = 57/30 = 1 27/30 = 1 9/10
2 7/30 - 1 17/20 = 67/30 - 37/20 = 134/60 -
= 111/60 = 23/60
Szczegółowe wyjaśnienie:
proszę
