Răspuns:
Explicație pas cu pas:
9/4 + 5/6 = 27/12 + 10/12 = 37/12
5 + 3/7 = 35/7 + 3/7 = 38/7
2 - 1 5/8 = 2 - 13/8 = 16/8 - 13/8 = 3/8
3/4 - 1/5 = 15/20 - 4/20 = 11/20
7/8 - 5/6 = 21/24 - 20/24 = 1/24
1 - 3/7 = 7/7 - 3/7 = 4/7
17/18 - 2/6 = 17/18 - 6/18 = 11/18
3 5/12 - 1 3/8 = 41/12 - 11/8 = 82/24 - 33/24 = 49/33
