a) 16/9 + 3/5
b)4/13 - -12/7
c)-3/2 + 4/5
d)3/-4 - 1/4
e)2/3 - 1/2
f)3/4 : 15/24
h)31/17 + -5/13 + -8/13 - 14/17
i)4/9 + 1/2 . 2/3
k)1/2 . 3/4 - (3/4 - 4/5)
Loga
Sinh Học lớp 12
