а) 15/19; 4/21; 36/45.
b) 19/10
c) 2 4/13
Д) 19/10 = 1 9/10
Е) 2 4/13 = 30/13
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Answers & Comments
а) 15/19; 4/21; 36/45.
b) 19/10
c) 2 4/13
Д) 19/10 = 1 9/10
Е) 2 4/13 = 30/13