Odpowiedź:
Szczegółowe wyjaśnienie:
1/6 + 2/3 = 1/6 + 4/6 = 5/6
1 3/5 + 1/2 = 5/5 + 3/5 + 5/10 = 10/10 + 6/10 + 5/10 =
= 21/10 = 20/10 + 1/10 = 2 1/10
3/4 * 2/3 = 6/12 = 1/2
1 3/4 * 3/2 = 7/4 * 3/2 = 21/8 = 16/8 + 5/8 = 2 5/8
2 3/4 : 1/2 = 11/4 * 2/1 = 11*2/4 = 11/2 = 10/2 + 1/2 = 5 1/2
2/3 + 0,5 = 2/3 + 5/10 = 2/3 + 1/2 = 4/6 + 3/6 =
= 7/6 = 6/6 + 1/6 = 1 1/6
