Question

допоможіть дам 20 балів ​

Answer 1

1) 7/12 + 3/12 = 10/12 = 5/6

2) 13/18 - 5/18 = 8/18 = 4/9

3) 1 3/20 + 5 7/20 = 6 10/20 = 6 1/2

4) 9 13/48 - 5 5/48 = 4 8/48 = 4 1/6