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Vadim26 [7]
3 years ago
11

What is the common denomitator of this fractions 9/14 1/7 8/21

Mathematics
2 answers:
belka [17]3 years ago
8 0
21 would be the answer because you can multiply everyone of those numbers to get 21.
Katarina [22]3 years ago
6 0
So first find the factors of the denomenatores
14=2 times 7
7=7
21=7 times 3
common one would be having at least one 2, one 7, and one 3
find what numbers can be made by all of them
2 times 7 times 3
2 times 7
             7
             7 times 3
they are all in it

2 times 3 time s7=42

common denoomenator is 42

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