Current location - Training Enrollment Network - Mathematics courses - Su Jiaoban fifth grade second volume mathematics new basic training answer page 53.
Su Jiaoban fifth grade second volume mathematics new basic training answer page 53.
1: 14 16 13

2 5 4

3 2 3

2. The simplest score: 1/5 8/7 9/8 17/8.

3:18/24 20/3014/26 with a common factor of 2

18/24 30/45 57/ 12 with a common factor of 3

30/45 20/30 70/55 with a common factor of 5

4: 1/2 1/3 2/3 3/2 1/2

5: 1/6 5/6

1/8 3/8 5/8 7/8

6: 3/4 2/3 2/3 2/3

7: 6/ 14 12/28