Bài 2: Số thập phân hữu hạn

7/5 = 1.4
13/2 = 6.5
11/10 = 1.1
21/50 = 0.42
-13/4 = -3.25
-13/5 = -2.6
-13/5 = -2.6 (same as #6)
-3/2 = -1.5
-23/10 = -2.3
-7/20 = -0.35
-26/25 = -1.04
8/-25 = -0.32
Bài 3: Số thập phân vô hạn tuần hoàn

-7/3 = -2.(3) (The 3 repeats infinitely)
-11/3 = -3.(6) (The 6 repeats infinitely)
7/6 = 1.1(6) (The 6 repeats infinitely)
15/7 = 2.(142857) (The block 142857 repeats infinitely)
-1/7 = -0.(142857) (The block 142857 repeats infinitely)
9/7 = 1.(285714) (The block 285714 repeats infinitely)
-11/6 = -1.8(3) (The 3 repeats infinitely)
-5/3 = -1.(6) (The 6 repeats infinitely)
-15/11 = -1.(36) (The block 36 repeats infinitely)
9/13 = 0.(692307) (The block 692307 repeats infinitely)
-6/15 = -0.4 (This is a terminating decimal, not a recurring one)
31/30 = 1.0(3) (The 3 repeats infinitely)