a)- 2/3 + 5/12 b)- 2/9 – 5/12
c)- 1 1/4 – 2 1/4 d)2, 25 – – 6/25
e)5/6 : -7/12 f) – 21/24 :- 14/8
g)5/12 – – 7/6 h)- 15/16 . 8/- 25
2 bình luận về “a)- 2/3 + 5/12 b)- 2/9 – 5/12 c)- 1 1/4 – 2 1/4”