Odpowiedź :
Odpowiedź:
2 3/5 + 1 1/4 =
2 12/20 + 1 5/20 =
= 3 17/20.
3 4/5 - 1 3/10 =
3 8/10 - 1 3/10 =
= 2 5/10 = 2 1/2
5 1/12 - 3 2/3=
= 5 1/12 - 3 8/12 =
= 4 13/12 - 3 8/12 = 1 5/12
Odpowiedź:
2 3/5 + 1 1/4 =
2 12/20 + 1 5/20 =
= 3 17/20.
3 4/5 - 1 3/10 =
3 8/10 - 1 3/10 =
= 2 5/10 = 2 1/2
5 1/12 - 3 2/3=
= 5 1/12 - 3 8/12 =
= 4 13/12 - 3 8/12 = 1 5/12