/ to ułamek
Odpowiedź:
60.
a) 3 1/6 - 1/4 = 3 2/12 - 3/12 = 2 11/12
b)2 4/5 - 4/7 = 2 28/35 - 20/35 = 2 8/35
c)3 5/11 - 1/2 = 3 10/22 - 11/22 = 2 21/22
d)4 2/5 - 1 7/15 = 4 6/15 - 1 7/15 = 2 14/15
e)3 5/8 - 2 5/6 = 3 15/24 - 2 20/24 = 19/24
f)3 5/6 - 2 4/9 = 3 15/18 - 2 8/18 = 1 7/18
61.
a) 3 5/7 + 2 4/5 + 6 1/7 - 3 = 3 25/35 + 2 28/35 + 6 5/28 - 3 = 9 23/28
b) 10 1/4 - 2 1/10 + 1/5 + 1 1/2 = 10 5/20 - 2 2/20 + 4/20 + 1 10/20 = 10 1/20
c) 7 1/6 - 2 2/3 + 1 7/9 - 4 1/3 = 7 3/18 - 2 12/18 + 1 14/18 - 4 6/18 = 1 17/18
