同分母分数减法练习题
1.5/6 − 3/6 =
2.5/7 − 4/7 =
3.2/6 − 1/6 =
4.3/7 − 2/7 =
5.6/7 − 4/7 =
6.6/7 − 5/7 =
7.2/3 − 1/3 =
8.3/4 − 2/4 =
9.6/8 − 3/8 =
10.4/8 − 1/8 =
11.4/6 − 1/6 =
12.3/5 − 2/5 =
13.6/8 − 5/8 =
14.2/5 − 1/5 =
15.2/7 − 1/7 =
16.2/4 − 1/4 =
17.7/8 − 3/8 =
18.3/8 − 1/8 =
19.4/5 − 3/5 =
20.4/6 − 2/6 =