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A.) 5 per 9 + 7 per 9 =
5/9 + 7/9
= 12/9
= 1 3/9
= 1. 1/3
(D.) 1 per 4 + 2 per 9 =
1/4 + 2/9
= 9/36 + 8/36
= 17/36
(E.) 3 per 7 + 4 per 5 =
3/7 + 4/5
15/35 + 28/35
43/35
1 8/35
(F.) 7 per 8 + 7 per 24 =
7/8 + 7/24
21/24 + 7/24
28/24
1 4/24
1. 1/6