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rusak2 [61]
3 years ago
6

For questions 1- 3 find the exact sum or difference.

Mathematics
1 answer:
7nadin3 [17]3 years ago
6 0
D, Because 7/15 + 9/15 is 16/15 + 4/15 =20/15 which equals 1 5/15 which turns into 1 1/3
A, 1/21 + 2/21 = 3/21 and that equals 1/7

C, 3/14+3/12 turns into 3/14+5/14= 10/14 - 8/14= 2/14=1/7
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yulyashka [42]

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