1. 3 - 8/9=… 2. 6 - 7/11=… 3. 4 3/4 - 3 5/12=… 4. 7 6/10 - 2 1/5=… 5. 4 5/6 - 1 2/9=…

1). 3 - 8/9 =
3 - 0,889 = 2,111
2). 6 - 7/11 =
6 - 0,6363 = 5,3637
3). 4 3/4 - 3 5/12 = 19/4 - 41/12 = 57/12 - 41/12 = 16/12

4). 7 6/10 - 2 1/5 = 76/10 - 11/5 = 76/10 - 22/10 = 54/10

5). 4 5/6 - 1 2/9 = 29/6 - 11/9 = 87/18 - 22/18 = 65/18

*Semoga membantu :)