Odpowiedzi

2010-01-24T15:06:40+01:00
4/5 + 7/10 =1 1/2
9/12 + 5/16 =1 1/16
3/4 - 3/10 =0,45=9/20
21/24 - 5 / 36 =53/72
1 4 1
Najlepsza Odpowiedź!
2010-01-24T15:08:46+01:00
4/5 + 7/10 = 8/10 + 7/10 = 15/10 1,5
9/12 + 5/16 = 27/48 + 15/48 = 42/48 = 21/24
3/4 - 3/10 = 15/20 - 6/20 = 9/20
21/24 - 5 / 36 = 63/72 - 10/72 = 53/72