1) 3/7 + 8/11 = (3*11 + 8*7)/ 77 = 89/77
2) 2/14 + 8/7 = (2 + 8*2)/14 = 18/14
3) 8/5 - 4/35 = (8*7 - 4)/35 = 52/35
4) 7/12 + 7/4 = (7*3 + 7) /12 = 28/12
5) 5/3 + 4/11 = (5*11 + 4*3) / 33 = 67/33
6) 1/2 + 7/12 = (6 + 7)/12 = 13/12
7) 3/4 + 8/28 = (3*7 + 8)/28 = 29/28
8) 3/9 - 12/3 = (3 - 12*3)/9 = -33/9
2) 2/14 + 8/7 = (2 + 8*2)/14 = 18/14
3) 8/5 - 4/35 = (8*7 - 4)/35 = 52/35
4) 7/12 + 7/4 = (7*3 + 7) /12 = 28/12
5) 5/3 + 4/11 = (5*11 + 4*3) / 33 = 67/33
6) 1/2 + 7/12 = (6 + 7)/12 = 13/12
7) 3/4 + 8/28 = (3*7 + 8)/28 = 29/28
8) 3/9 - 12/3 = (3 - 12*3)/9 = -33/9
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